UBACK® Technical Center | Programming, Cutting Data & Configurator | NOGA MT
NOGA MT UBACK back machining system
NOGA MT · UBACK TECHNICAL CENTER

UBACK® Programming, Cutting Data & CNC Configurator

One technical center for the complete UBACK platform: USPOT back counterboring / spotfacing, UCHAMF back chamfering / countersinking, continuous and interrupted-cut programming, coolant configuration, machining videos and drawings, calculated RPM / feed guidance, insert technology and CNC program generation.

OPEN CONFIGURATOR ↓ PROGRAMMING GUIDELINES ↓ CUTTING DATA ↓
ApplicationsUSPOT + UCHAMF
Pilot-Hole RangeØ8–25 mm / 0.315–0.984″
ActuationCoolant · Emulsion · Air
Minimum Pressure6 bar / 90 PSI
UCHAMF Standards82° / 90°
Holder PlatformUBACK UX / DURASHIELD
QUICK ACCESS

UBACK Technical Information

Jump directly to the technical topic you need. The detailed CNC configurator remains the primary tool for matching the insert and UX holder to the actual application.

01

Videos & Drawings

See USPOT, UCHAMF and UBACK mechanism videos plus the official dimensional drawings.

 02

Operating Principle

Pressure-actuated foldable insert, pilot-hole transit and rear-side machining.

 03

Programming

Official continuous and interrupted machining illustrations, plus programming guidance and example code.

 04

Special Geometries

Cylindrical, sloped, slot and shoulder applications with coolant guidance.

 05

Machining Parameters

Interactive RPM, cutting speed and feed advisor for USPOT and UCHAMF.

 06

Full Cutting Data

ISO-group starting data for series B–G with stability adjustments.

 07

Insert Replacement & Cooling

Replacement procedure, spare parts and coolant / air / MQL configuration.

 08

Coatings & Chip-Formers

NCT/NCD/NCA/NCN/NCW/NCB/POL plus PL/ML/HL selection guidance.

 09

Configurator & G-Code

Build the insert designation, match the UX holder and generate a CNC cycle.
VIDEOS & MACHINING ILLUSTRATIONS

See the UBACK Process Before Programming It

Use the two application videos for USPOT and UCHAMF machining, then use the official dimensional drawings to understand the geometry that drives holder selection, RFC verification and CNC positioning. The mechanism and replacement videos are shown only in their dedicated technical sections below.

USPOT back spotfacing machining video preview USPOT MACHINING
Back Counterboring / Spotfacing

USPOT in CNC Machining

Real rear-side flat-bottom machining through the existing pilot hole.

UCHAMF back chamfering machining video preview UCHAMF MACHINING
Back Chamfering / Countersinking

UCHAMF in CNC Machining

See the UBACK mechanism applied to rear chamfering and countersinking.

USPOT dimensional machining drawing showing pilot hole and counterbore parameters
USPOT Machining Illustration

Back Counterbore / Spotface Geometry

Use the drawing to define the rear-side flat-bottom feature and verify the geometry before configuring the application.

Ød · Pilot Hole ØD · Counterbore / Spotface L · Pilot-Hole Length R · Corner Radius RFC · Relief for Cutting FL · Folding Length
UCHAMF dimensional machining drawing showing pilot hole and countersink parameters
UCHAMF Machining Illustration

Back Chamfer / Countersink Geometry

Use the standard 82° or 90° angle—or a special angle—to define the required rear chamfer while verifying holder reach and transit clearance.

Ød · Pilot Hole ØD · Countersink Diameter α · 82° / 90° / Special L · Pilot-Hole Length RFC · Relief for Cutting FL · Folding Length LTB2 · Length to Bottom
Use the illustrations together with the Configurator: the drawing defines the feature; the Configurator matches the corresponding insert and UX holder and verifies critical limits such as L ≤ RFC.
OPERATING PRINCIPLE

How the UBACK System Works

UBACK UX holders are designed for automated CNC rear-side operations. The foldable insert passes through the pilot hole, is actuated after reaching the rear side and then performs the required USPOT or UCHAMF operation.

UBACK insert opening, cutting and retracting mechanism video UBACK MECHANISM · AUTOPLAY WHEN VISIBLE

Watch the Insert Open, Cut & Retract

The pressure-actuated mechanism lets the insert pass through the pilot hole in its transit position and machine the hidden rear feature once it is below the workpiece.

⚙

CNC Automated Operation

Designed for machine-controlled rear-side machining rather than a manual back-side setup.

💧

Pressure Actuation

Coolant, emulsion or air can actuate the mechanism. Minimum pressure: 6 bar / 90 PSI.

◎

Pilot-Hole Protection

The holder geometry is designed to pass through the pilot hole without damaging the bore surface.

↔

Two Insert Families

USPOT performs flat-bottom back counterboring / spotfacing; UCHAMF performs back chamfering / countersinking.

CNC PROGRAMMING

Continuous & Interrupted-Cut Programming

The fundamental movement sequence is shared by USPOT and UCHAMF. Use the official UBACK machining illustrations together with the step-by-step sequence below. For interrupted cutting, the critical difference is the coolant strategy during the cutting portion of the cycle.

Official UBACK continuous-cut machining operation sequence with USPOT insert

Continuous Cut

Use FL and rear-face position to move the folded insert safely below the workpiece, deploy it, machine the rear feature and return to the transit position.

1
Start / Safe ZStart spindle and position safely above the pilot hole.
2
Transit StateSet the required pressure state for safe passage through the pilot hole.
3
Pass Through HoleMove through the pilot hole using the required FL / depth geometry.
4
Below Rear FaceMove to the safe position below the workpiece before cutting engagement.
5
Deploy InsertActuate the UBACK insert after clearing the rear face.
6
Controlled ApproachApproach the rear machining surface with a controlled feed.
7
Machine FeaturePerform spotface, counterbore, chamfer or countersink at cutting feed.
8
Return SafeMove away from the finished rear feature to a safe retract position.
9
Fold for TransitReturn the insert to the transit state before entering the pilot hole.
10
Exit / EndRetract through the pilot hole, stop spindle and end the cycle.
DOWNLOAD G-CODE EXAMPLE ↗ GENERATE MACHINE PROGRAM ↓
Official UBACK interrupted-cut machining operation sequence with USPOT insert

Interrupted Cut

Use the same overall motion sequence, but adapt the cutting portion of the cycle so pressure / coolant behavior does not interfere with an interrupted cutting path.

Important — Steps 6–7: During the interrupted cutting portion, switch internal coolant OFF and use external coolant only. Internal coolant may be used for actuation / transit as required by the machine sequence, but not while the insert is performing the interrupted cut.
A
Verify RigidityCheck workholding, overhang, tool engagement and the interruption geometry.
B
External CoolantDirect external coolant to the cutting edge during the interrupted cut.
C
No Internal CoolantDo not use internal coolant during the cutting steps corresponding to Steps 6–7.
D
Reduce Data if NeededFor unstable fully interrupted geometries, reduce speed and feed by 30% as the starting point.
Sequence note: the illustration may demonstrate USPOT, but the same UBACK fold / deploy / cut / retract principle is also used with UCHAMF. Always verify the actual controller logic and machine behavior before production.
Recommended workflow: identify the application as continuous or interrupted, confirm the illustrated sequence, calculate the starting RPM and feed in the Machining Parameters Advisor, and then verify the insert / holder match and generate the cycle in the UBACK Configurator & G-Code Generator.
SPECIAL CUTTING CONDITIONS

Rear-Surface Geometry Changes the Machining Strategy

Use these examples before selecting final cutting parameters. Continuous, sloped and fully interrupted rear surfaces do not use exactly the same coolant strategy or starting data.

Important: these rules are application starting points. Verify rigidity, insert engagement, workholding and machine behavior before production. For UCHAMF, first apply the normal UCHAMF 20% reduction to the UBACK recommendation; then apply any additional condition-specific reduction shown below.
UBACK continuous counterbore on cylindrical rear surface

Cylindrical Bore

Continuous rear-side cutting with stable circumferential engagement.

CONTINUOUS CUT INTERNAL COOLANT
UBACK machining on sloped rear surface

Sloped Surface

Variable insert engagement as the cutting edge moves across an inclined rear face.

EXTERNAL COOLANT ONLY MONITOR STABILITY
UBACK fully interrupted cutting across slot geometry

Slot

Fully interrupted engagement as the cutting edge crosses an open slot.

EXTERNAL COOLANT ONLY REDUCE DATA 30%
UBACK interrupted rear shoulder cutting condition type A

Shoulder — Type A

Fully interrupted shoulder geometry with reduced cutting stability.

EXTERNAL COOLANT ONLY REDUCE DATA 30%
UBACK interrupted rear shoulder cutting condition type B

Shoulder — Type B

Alternative fully interrupted shoulder condition with repeated entry and exit.

EXTERNAL COOLANT ONLY REDUCE DATA 30%
Rear-Surface Condition Starting Data Coolant During Cutting Programming / Stability Note
Continuous cylindrical surface Use normal UBACK recommendation. Internal coolant / material recommendation. Standard continuous-cut sequence.
Sloped surface Start from the normal recommendation; reduce if engagement is unstable. External coolant only. Monitor entry load because engagement changes across the slope.
Fully interrupted slot Reduce starting speed and feed by 30%. External coolant only. Confirm rigidity and repeatable insert engagement before increasing data.
Fully interrupted shoulder Reduce starting speed and feed by 30%. External coolant only. Use the interrupted-cut programming sequence and increase parameters gradually.
UCHAMF: reduce the normal UBACK cutting recommendations by 20% first. When the UCHAMF application is also fully interrupted, apply the interrupted-condition reduction to the already adjusted UCHAMF starting value.
UBACK MACHINING PARAMETERS ADVISOR

Calculate RPM & Feed from the UBACK Cutting Recommendations

Select the application, ISO material group, UX holder series and actual cutting diameter. The advisor converts the published UBACK starting recommendations into practical spindle speed and linear feed values.

Application Inputs

Enter the actual machining condition. Use the Configurator separately to verify holder/insert geometry.

Use the finished counterbore / spotface / countersink diameter—not the pilot-hole diameter.
Starting values only. Validate the tool-holder, insert, workholding and machine behavior before production. For interrupted cutting, use external coolant during the cutting portion of the cycle.

Recommended Starting Window

The result below is calculated from the published UBACK ISO-group data and adjusted for the selected application and stability condition.

Cutting Speed vc — —
Spindle Speed — Calculated from actual ØD
Linear Feed vf — —
Feed per tooth / rev. — UBACK uses one active cutting insert.
Suggested Start Point — Midpoint of the adjusted speed window.
Chip-Former — —
Coolant — —
Application Factor — UCHAMF uses 80% of UBACK starting data.
Selected Series — —
Adjustments Applied
  • Select the application parameters and calculate.
FULL UBACK CUTTING RECOMMENDATIONS

Complete Machining Recommendation Table

The complete published UBACK material table is shown as individual searchable conditions. Filter by ISO group or search directly by material, condition, AISI / SAE / ASTM, DIN, chip-former or coolant.

ISO / Material Group
40 matching material conditions Examples: 304L · 1.4306 · Inconel · Hardened · PL
No matching UBACK material condition found.
ISO Material Detail / Structure Condition AISI / SAE / ASTM DIN W.-Nr. vc Cutting Speed
m/min / sfm		 Series B
fr mm/t / ipt		 Series C
fr mm/t / ipt		 Series D
fr mm/t / ipt		 Series E
fr mm/t / ipt		 Series F
fr mm/t / ipt		 Series G
fr mm/t / ipt		 Recommended
Chip-Former		 Coolant
P Non-alloy steel / cast steel / free-cutting steel <0.25% C Annealed 1020 1.0044 60–120197–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL / ML Air / Wet
P Non-alloy steel / cast steel / free-cutting steel ≥0.25% C Annealed 1035 1.0501 60–120197–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL / ML Air / Wet
P Non-alloy steel / cast steel / free-cutting steel <0.55% C Quenched & tempered 1045 1.1201 60–120197–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL / ML Air / Wet
P Non-alloy steel / cast steel / free-cutting steel ≥0.55% C Annealed 1055 1.0535 60–120197–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL / ML Air / Wet
P Non-alloy steel / cast steel / free-cutting steel ≥0.55% C Quenched & tempered 1060 1.1221 60–120197–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL / ML Air / Wet
P Low-alloy / cast steel (<5% alloying elements) — Annealed G92600 1.5028 50–120164–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL / ML Air / Wet
P Low-alloy / cast steel (<5% alloying elements) — Quenched & tempered 4130 1.7218 50–120164–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL / ML Air / Wet
P Low-alloy / cast steel (<5% alloying elements) — Quenched & tempered 4142 1.2332 50–120164–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL / ML Air / Wet
P Low-alloy / cast steel (<5% alloying elements) — Quenched & tempered 5045 1.7006 50–100164–328 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL / ML Air / Wet
P High-alloy steel / cast steel / tool steel — Annealed H13 1.2344 40–90131–295 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Air / Wet
P High-alloy steel / cast steel / tool steel — Quenched & tempered M33 1.3249 40–90131–295 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Air / Wet
P Stainless steel / cast steel Ferritic / martensitic — 420 1.4021 40–90131–295 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Air / Wet
M Stainless steel Austenitic / duplex — 304L 1.4306 50–100164–328 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL Wet
K Gray cast iron (GG) Ferritic / pearlitic — Class 25 0.6015 60–120197–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL Air / Wet
K Gray cast iron (GG) Pearlitic / martensitic — Grade H20 36037 60–120197–394 sfm 0.030.0012″0.040.0016″0.050.0020″0.070.0028″0.080.0031″0.090.0035″ PL Air / Wet
K Nodular cast iron (GGG) Ferritic — 60-40-18 0.7043 50–100164–328 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL Air / Wet
K Nodular cast iron (GGG) Pearlitic — F33500 0.705 50–100164–328 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL Air / Wet
K Malleable cast iron Ferritic — A47 0.8135 50–100164–328 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL Air / Wet
K Malleable cast iron Pearlitic — A220 Class 0.8155 50–100164–328 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL Air / Wet
N Aluminum wrought alloys Not hardenable — 5005 3.3315 100–160328–525 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
N Aluminum wrought alloys Hardenable — 7075 3.4365 100–160328–525 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
N Aluminum cast alloys ≤12% Si Not hardenable 518 3.3292 100–160328–525 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
N Aluminum cast alloys ≤12% Si Hardenable 515 3.3241 100–160328–525 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
N Aluminum cast alloys >12% Si High temperature 390 — 100–160328–525 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
N Copper alloys >1% Pb Free cutting C36000 2.0375 90–130295–427 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
N Copper alloys — Brass C22000 2.023 90–130295–427 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
N Copper alloys — Electrolytic copper C63000 2.0966 90–130295–427 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
N Non-metallic Duroplastics / fiber plastics — Bakelite — 180–305591–1001 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
N Non-metallic Hard rubber — Ebonite — 180–305591–1001 sfm 0.050.0020″0.060.0024″0.080.0031″0.100.0039″0.120.0047″0.140.0055″ PL Wet
S High-temperature alloys Fe based Annealed 330 1.4864 40–80131–262 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Wet
S High-temperature alloys Fe based Hardened S590 1.4977 40–80131–262 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Wet
S High-temperature alloys Ni / Co based Annealed Incoloy 825 2.4858 25–4082–131 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Wet
S High-temperature alloys Ni / Co based Hardened Inconel 718 2.4668 25–4082–131 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Wet
S High-temperature alloys Ni / Co based Cast Nimocast K24 2.4674 25–4082–131 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Wet
S Titanium alloys Pure — Titanium Gr. 1 3.7024 30–6098–197 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Wet
S Titanium alloys Alpha + beta alloys Hardened Titanium Gr. 5 3.7165 30–6098–197 sfm 0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″0.080.0031″ PL / ML Wet
H Hardened steel — Hardened HARDOX 500 — 30–5098–164 sfm 0.020.0008″0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″ ML / HL Air
H Hardened steel — Hardened HARDOX Extreme — 30–4098–131 sfm 0.020.0008″0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″ ML / HL Air
H Chilled cast iron — Cast A532 IIIA 25% Cr 0.965 45–50148–164 sfm 0.020.0008″0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″ ML / HL Air
H Cast iron — Hardened A532 IID 20% CrMo 0.9645 30–5098–164 sfm 0.020.0008″0.020.0008″0.030.0012″0.040.0016″0.050.0020″0.060.0024″ ML / HL Air
Adjustment rules: for moderate tool-holder or workpiece stability, reduce feed by up to 10%; for poor stability, reduce feed by up to 30%. Use suitable coolant directed to the cutting edge and right-hand / clockwise machining. For UCHAMF inserts, reduce all cutting recommendations by 20%. For the fully interrupted slot / shoulder conditions shown above, start with an additional 30% reduction and use external coolant only.
INSERT REPLACEMENT & COOLING SETUP

Service the UBACK Insert and Configure the Correct Pressure Medium

UBACK inserts are replaced using the standardized pin, key and clamping-screw method without an additional mounting fixture. The same replacement principle applies to USPOT and UCHAMF. The UX holder can then be configured for emulsion / coolant, air or MQL according to the machine and application.

UBACK Insert Replacement

The replacement pin holds the insert in position so it cannot retract while the clamping screw is loosened. After removing the used insert, clean the seating pocket, install the correct replacement insert and verify free opening / closing before production.

UBACK insert replacement video preview INSERT REPLACEMENT · AUTOPLAY WHEN VISIBLE
Official UBACK Insert Replacement Illustration Click to enlarge
Official NOGA MT UBACK insert replacement illustration
1
Secure the insert with the replacement pinInsert the pin so the cutting insert remains controlled and cannot retract into the holder during screw removal.
2
Loosen and remove the clamping screwUse the correct UBACK service key for the series-specific clamping screw. Keep the insert supported with the pin.
3
Remove the insert and clean the pocketRemove chips, dried coolant and contamination from all seating and clamping surfaces.
4
Install the correct USPOT / UCHAMF insertConfirm that the insert family and series match the UX holder and application before tightening.
5
Reinstall the screw and check movementTighten securely, remove the pin and verify that the insert opens and retracts freely before machining.
Common service item Replacement Pin

Used to secure the insert and prevent retraction while the clamping screw is being removed.

Common service item UBACK Service Key

Use the correct service key supplied / specified for the UBACK clamping screw. The replacement method is common to USPOT and UCHAMF.

No matching UX holder / series found.
UX Series Pilot-Hole Range Insert Clamping Screw Piston / Coolant Plug Service Note
BØ8–10 mmUX0005
M2.5 × 0.35 × 7B		UX0011
M5 × 6		Used on UX2080 / UX2090 / UX2100.
CØ11–13 mmUX0006
M3 × 0.35 × 10C		UX0011
M5 × 6		Used on UX3110 / UX3120 / UX3130.
DØ14–16 mmUX0007
M3 × 0.35 × 13D		UX0012
M6 × 6		Used on UX4140 / UX4150 / UX4160.
EØ17–19 mmUX0008
M3 × 0.35 × 16E		UX0012
M6 × 6		Used on UX5170 / UX5180 / UX5190.
FØ20–22 mmUX0009
M4 × 0.5 × 19F		UX0013
M8 × 6		Used on UX6200 / UX6210 / UX6220.
GØ23–25 mmUX0010
M4 × 0.5 × 21G		UX0013
M8 × 6		Used on UX7230 / UX7240 / UX7250.
Replacement note: the official illustration above shows the UBACK insert-replacement method. The same replacement principle applies to both USPOT and UCHAMF inserts; always confirm that the insert family and series match the selected UX holder.

Configuring UBACK Tool-Holders for Different Cooling Systems

UBACK tool-holders can control insert retraction using emulsion / coolant, air or Minimum Quantity Lubrication (MQL). For air or MQL operation, seal the tool-holder coolant inlet with the supplied plug set screw. Minimum system actuation pressure remains 6 bar / 90 PSI.

SYSTEM CONFIGURATION

One UX Holder Platform — Three Pressure-Medium Options

UBACK tool-holders control insert retraction using emulsion / coolant, compressed air or Minimum Quantity Lubrication (MQL). For air or MQL operation, seal the tool-holder coolant inlet with the supplied plug set screw.

Internal Coolant / Emulsion Compressed Air MQL Minimum 6 bar / 90 PSI
UBACK tool-holder screw and piston configuration for coolant air and MQL systems

Internal Coolant / Emulsion

Standard UBACK pressure-actuation configuration using the machine's coolant / emulsion supply through the spindle and tool-holder.

  • Supply the pressure medium through the normal machine coolant path.
  • Verify at least 6 bar / 90 PSI at the UBACK system.
  • Confirm the insert closes / retracts reliably before entering the pilot hole.
  • Use the cutting-data coolant recommendation for the selected material and geometry.
Continuous applications: internal coolant can be used according to the published material recommendation. For interrupted cuts, follow the separate external-coolant rule during the cutting portion.
Cooling mode Internal coolant / emulsion
Coolant inlet plug Normal coolant-inlet configuration

Do not seal the coolant inlet when it is being used as the normal pressure-supply route.

Minimum pressure 6 bar / 90 PSI

Confirm pressure at the actual machine setup, not only at the pump specification.

Interrupted-cut rule External coolant during cutting

For the interrupted cutting steps, do not use internal coolant. Use external coolant only.

Coolant

Internal Coolant / Emulsion

Standard through-spindle configuration for the majority of UBACK applications.

Air

Compressed Air

Seal the tool-holder coolant inlet with the supplied plug set screw and configure the machine's air supply for the UBACK actuation requirement.

MQL

Minimum Quantity Lubrication

Seal the coolant inlet with the supplied plug set screw and use the machine's MQL configuration while maintaining reliable insert actuation.

Important: this section describes holder / pressure-medium configuration. The programming section remains the controlling reference for interrupted cutting, where Steps 6–7 are performed without internal coolant and external coolant is used instead.
INSERT TECHNOLOGY

Chip-Formers, Coatings & Surface Treatments

Select the cutting land and coating for the material and cutting condition. The configurator can suggest a starting combination from the selected ISO material group.

PLPositive Cutting Land
PL positive cutting land chip-former

PL — Positive Cutting Land

All-round cutting geometry for ISO P, M, K, N and S materials.

PMKNS
MLModerate Cutting Land
ML moderate cutting land chip-former

ML — Moderate Cutting Land

Moderate cutting land for ISO P, M, K, S and H materials.

PMKSH
HLNegative Cutting Land
HL negative cutting land chip-former

HL — Negative Cutting Land

Negative cutting land for ISO P, M, K, S and H materials.

PMKSH
Filter Coatings by ISO Material Group
7 matching coating / treatment options
NOGA CodeCoatingKey FeaturesTypical ApplicationMaterial Examples PMKNSH
NCTTiAlNThermal stability, oxidation and wear resistance.General-purpose and high-speed machining; wet or dry.AISI 304, 42CrMo4, gray cast iron, Ti6Al4V✓✓✓×✓✓
NCDTiAlSiNVery high hardness and oxidation resistance above 1200°C.Demanding high-performance machining.Inconel 718, AISI 4140, Ti6Al4V, Hastelloy✓✓××✓✓
NCAAlTiSiNHigh hardness, thermal stability and wear resistance.High-speed machining in extreme conditions.AISI 316, AISI H13, Hastelloy✓✓××✓✓
NCNAlCrNHigh oxidation resistance, toughness and abrasion resistance.General machining in abrasive / wet conditions.AISI 304, AISI 1045, gray cast iron, AL6061✓✓✓✓××
NCWAlTiNHigh hardness, wear resistance and thermal stability.Heavy-duty and high-speed cutting; dry / abrasive conditions.AISI 4340, M2 HSS, gray cast iron✓✓✓×✓×
NCBTiB₂High conductivity and resistance to material adhesion / BUE.High-speed machining of non-ferrous materials.AL7075, 6061-T6, copper, magnesium alloys, SiC composites×××✓✓×
POLPolishingRemoves scratches / micro-defects and reduces friction.High-speed finishing of non-ferrous materials.AL7075, 6061-T6, copper, magnesium alloys×××✓××
PRIMARY SELECTION TOOL

UBACK Configurator & G-Code Generator

Choose USPOT or UCHAMF, enter the application dimensions, match the correct UX holder series, verify RFC, select insert technology and generate the CNC back-machining program. The configurator starts at Step 1 and does not auto-select a product.

🔧 UBACK Configurator & G-Code Generator

USPOT / UCHAMF insert configurator · Tool-holder matching · CNC back counterboring & countersinking programs

1
Insert Type
2
Insert Configurator
3
Insert & Tool Match
4
CNC Program

Step 1: Select Insert Type

Choose the UBACK application you need. The configurator will build the exact insert designation and match the correct UX tool-holder.

Click an insert type to continue — the configurator opens automatically.

Step 2: Insert Configurator

Enter your application dimensions. All designation codes are generated in metric.

⚡ Quick Fill from Insert Designation (optional)

The form fills itself as you type. Enter a full designation, or just a NOGA SKU (e.g. US2003) to pull the insert straight from the ERP database.

⚙ Configuration Parameters

📏 Unit System mm inch
Range: 8.0–25.0 mm
Distance the insert travels through the part — must be ≤ RFC of the tool-holder.
Range: 0.1–3.0 mm
Default R = 0.4 mm (.01575″) → code R04
Auto-suggested from material
Select a material group to see the suggested coating

📐 Technical Diagram

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ⓘ Legend

Step 3: Your Insert & Tool-Holder

Matched configuration based on your application. The insert series always matches the tool-holder series.

🔩 Insert

—
SKU:UPON ORDER
Designation Breakdown

🛠 UX Tool-Holder

—
SKU:—
UX tool-holder dimensional drawing

Step 4: Generate CNC Program

Build the back-machining cycle for your controller using the matched tool-holder and insert.

CNC Controller
Cutting Conditions

📊 Recommended Cutting Data

Cutting Speed
-
m/min
Spindle Speed
-
RPM
Feed Rate
-
mm/min
Operation Parameters
Distance above material for safe traverse
Depth of through-hole from part bottom (usually 0)
⛔
RFC Limit Exceeded!
Final depth of the back operation from the bottom face
Time to wait for coolant pressure (open/close insert)
Feed rate for non-cutting moves
Auto-filled from cutting data — adjust as needed

Generated G-Code Program

















NOGA MT UBACK Configurator & G-Code Generator  ·  version —







    

  






  

    

      
FAQ
UBACK Technical Questions

      
Quick answers to the questions most often needed before configuring or programming a UBACK application.

    

    

      
What applications does UBACK support?
The UX holder platform supports USPOT inserts for CNC back spotfacing / counterboring and UCHAMF inserts for back chamfering / countersinking. The insert series must match the selected UX holder series.

      
What is the minimum pressure for the UBACK mechanism?
Use a minimum actuation pressure of 6 bar / 90 PSI. The platform supports coolant, emulsion or air actuation.

      
What changes for an interrupted cut?
The overall UBACK movement sequence remains similar, but the interrupted cutting portion should be performed without internal coolant; use external coolant and reduce cutting data where the geometry significantly reduces stability.

      
How much should cutting data be reduced for fully interrupted slot or shoulder applications?
The technical guidance recommends reducing cutting parameters by 30% for the fully interrupted slot and shoulder examples shown above.

      
Are UCHAMF inserts standard or special?
UCHAMF has standard 82° and 90° insert options. Other angles can be produced for application-specific requirements.

      
How should UCHAMF cutting recommendations be adjusted?
Use the UBACK cutting recommendations as starting values and reduce them by 20% when using UCHAMF inserts.

      
How do I know which UX holder to use?
Use the configurator. Enter the pilot-hole diameter, required rear feature and pilot-hole length. The configurator matches the holder series and verifies critical geometry including L ≤ RFC.

    

  






  

    

      

        
Have the Drawing? Configure the UBACK Application First.

        
Use the configurator to identify the UX holder and insert designation. For non-standard geometry, interrupted cuts or special conditions, send the workpiece drawing, material and machine information to NOGA MT.

      

      

        OPEN CONFIGURATOR ↑
        SEND DRAWING / APPLICATION ↗
      

    

  





















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