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Specification Item Specification Value Standard Accessories
Optional Accessories$1
$2
07.14.Printed in Japan
CNC AUTOMATIC LATHE
NN-20UB8
※(1)In use of rotary back tool unit: 70mm ※(2)In use of drill holder for deep hole: 70mmThe above-mentioned machine capability is for the case when work material is SUS303.Depending on the processing condition such as the quality of work material and the tools to be used,machine capabilities values may differ from the above-mentioned values.Note: The specification based on the specification applied within Japan. Specifications are subject to change without notice.Note: This product could be classified as strategic item or other export regulated under the Foreign Exchange and Foreign Trade Law. Contact our sales representative when exporting this product.
Machining diameterMachining lengthMax. parts unloading lengthMain spindle through-hole diameterMain spindle RPMMax. no. of tools (as standard)
OD tool (□12.7×150mm max.)ID frontal hole ER16Live tool ER16Max. frontal drill diameterMax. frontal drill lengthMax. frontal tap diameterMax. live tool spindle drill holeMax. live tool spindle tap diameterLive main tool spindle
OD (□10×80mm Max.)ID frontal hole ER16Max. frontal drill diameterMax. frontal tap diameterID / Off-center drill (Option) Max. ID / Off-center drill diameter (Option)Max. ID / Off-center tap diameter (Option)Feed rateMin. command unit
C-axis min. command unit ($1・2)Main spindle motorLive tool motorBack spindle motorBack live tool motor (Option)
X1、Z1Y1、X2、Z2Coolant pumpLubricant pumpMain spindle center heightInput power capacityPneumatic pressure & flow rateCoolant tankLubricant tankW×D×HWeightMITSUBISHI NCNC display (8.4 color TFT LCD)Machining program memory capacityNumber of tool off-set correctionBackground programming editing function
Main spindle C-axis function ($1,$2)User macro functionTool nose rounding offset functionCorner chamfering/Corner roundingFixed cycleComplex fixed cycleGeometric commandsOperation manualSerial In/Output interfaceCF card interface/USB interface
Φ20 mm (Option, Φ25mm)200mm/1 chuck
105mm ※(1)Φ24mm (Option, Φ27mm)10,000 r.p.m max. / 6,000 r.p.m max.175 (6 Option)44 (5 Option)Φ10mm
40mm ※(2)M8 Φ8mmM66,000 r.p.m max.13Φ8mmM62 / 2Φ8mm/Φ6mmM6/M536mm/min.0.0001mm0.0001°2.2/3.7kW0.75kW0.75kW0.4kW1.0kW0.5kw0.25kW0.003kW1000mm12KVA
0.6MPa、50L/min.110L0.8L2,140×1,030 ×1,680 mm2,135kgM70V
1280m40 pcs.
Synchronous rotary guide bush 20Synchronous rotary guide bush drive unit4 Live tool unitFrontal 4-drill attachment
Tool holder □12.7 (4 pcs.)Tool holder □12.7 for cut-off (1 pce.)Back tool unit (OD comb Tool ×1, ID Tool×3)
Main:Chuck sleeve/spring/spindle capBack:Chuck sleeve /spring/Spindle capDrill holder Φ22-10-70 (3 pcs.)Tap holder Φ22-94L (1pce.)Main spindle cooling unit ($1)Main spindle air-purge ($2)Automatic lubricator (w/level detection)Coolant oil unit Coolant oil cut-off detector Cut-off tool breakage detectorDoor safety interlockLightning surge protection functionMain spindle load detection modeAutomatic power interceptionWorking light (High luminance LED)Parts catcher ($2)Leveling pads
Fixed guide bush 20/25Synchronous rotary guide bush 25Sleeve for synchronous rotary guide bush 5 Live tool unit 3 Off-center-drill unit (E unit)
Tool holder □12.7 (additional) Tool holder □12.7 for cut-off (additional) Drill holder for deep hole Tap holder for deep hole Rotary back tool unit (ID Tool×2, Off-center-drill×2) Back tool holder (OD comb Tool)
ALPS TOOL NA nutREGO-FIX ERM nutTool presetterManual pulse generator NC display language(English/Chinese/Korean)Parts catcher
Pipe type parts unloader (I.D Φ13mm or less)Large-sized lubricant pump 1.8LOverride switchTap breakage detector ($1)Parts conveyor Hanger boltMedium pressure coolantAutomatic fire extinguisher Oil mist collector ToolingParts box
$1$2
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2.2/3.7kw built-in spindle motor is mounted on $1 main side, and 25mm spindle motor as an option.Motor with C-axis function (Simple belt type) on $2 back side.
【 Spindle Motor 】
NN-20UB8NN-20UB8
Z1 axisC axis
$1 main spindle
$2 main spindle
Z2 axis
X2 axis
Y1 axis
X1 axis
frontal 4-drill attachment
$1 live tool
independent $2 tool post
Total number of tools: 17 (incl. options)
The new larger cover will improve the effectiveness of your work, such as setting tools.
【 Cover 】
Tool post is made of special casting iron which is strong for abrasion resistance.Sliding surface is crafted by scrapers, which ensures longer-lasting and high rigid.And there are various optional units for your customers' request.
【 Tool Post 】
This operation panel is movable according to your work, such as Programming, Setup, and Maintenance.
【 Operation panel 】
MITSUBISHI M70 is built-in, and the legibility is improved by 8.4 color TFT.C-axis control is built-in as standard function, and operation time can be reduced by Position Loop of Main Spindle without returning to the original position.
【 CNC Control 】
5 6
4
4 5
(※ Option:When using Rotary back tool unit)
※(OD Tool (Comb Tool)×1 attachable)
3
Floor Layout
Main Tool Post
Back Tool Post Standard (Back tool unit)
Option (Rotary back tool unit)
■ New lineup of Rotary back tool unit which ispossible to machine various and complicated products.
■ Improvement of the maintenance bynew larger door cover
■ Overwhelmingly cost-effective 20mm model
■ High rigid designed tool post■ CNC M70 (MITSUBISHI) built-in
Coolant oil cut-off detectorStops the machine automatical ly when the pressure of coolant oil decreases below specified level.
Main spindle load detection modeStops the machine detect ing defects in the main spindle when standard load and actual main spindle load are different.
Cut-off tool breakage detectorStops the machine automatically detecting materials that cannot be completely cut-off due to the breakage fai lure of the part ing tool.
Tap breakage detector(Option)Stops the mach ine automat ica l ly de tec t ing broken tap wh i le processing the edge face of the tap.
Door safety interlock switchCauses the main power breaker to t r ip and the power to shut down when electric cabinet cover is opened.
Lightning surge protection functionProtects electronic circuit from high voltage surge noise such as lightning.
Auto power interceptionSwitches of f the power breaker on the machine automat ical ly when the machine is stopped during the automatic operation for any reason.
Safety System (Standard Equipment)
Tool name Size Standard Opt ion
OD Tool (Tool Holder)
ID Tool
Live Tool
※Off-center-drill + Live Tool
□12 .7
E R 1 6
E R 1 6
E R 11 + E R 1 6
Tool name Size
OD Tool (Comb Tool)×1
ID Tool×3
□10
E R 1 6
Tool name Size
ID Tool×2 ※
Off-center-drill×2
E R 1 6
E R 1 6