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20J2 Series

Power up both $1 and $2 Main spindle motor 1.5 / 3.7kW

NN-20J2

Power up both $1 and $2 Main spindle motor 1.5 / 3.7kW (20J : 1.5 / 2.2kW)
High efficiency production and complicated machining can be possible by the optimum alignment of $1 and $2
New CNC M70V (MITSUBISHI) built-in
Rapid feed rate speed 36m / min.

Tool Post

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 verious optional units for your customers' request.

Main Tool Post

Tool	Size	Equipment
OD Tool (Tool Holder)	□12.7×6	Standard
ID Tool	ER-16×4	Standard
Live Tool	ER-16×5	Option
Off-center drill + Live tool	ER-11×3 + ER-16×3	Option

Back Tool Post

Tool Name	Size	Equipment
OD tool (Comb tool)	□12.0×2	Option
ID tool	ER-16×3	Option
Live tool (A)	ER-16×3	Option
Off-center drill ※Set with (A)	ER-11×3	Option

Spindle Motor

Power up both $1 and $2 Main spindle motor 1.5/3.7kW

Main Spindle Motor
Back Spindle Motor

MITSUBISHI CNC

MITSUBISHI CNC: Machining program memory capacity is increased more than double (600m→1,280m). Computing power advancement, decreased cycle time by New PLC Engine loading. And internal compensating unit is improved 1nm (20J: 10nm), which makes the machining process more smoothly.
Operation Panel: Manual operation panel and CNC operation panel are separated. Setup time can be decreased by operation performance.

Tool presetter

Tool presetter: Nomura's original "Tool Presetters" increase machine utilization through "off machine" tool presetting of quick change tooling, reducing the time required to replace and adjust tools up to 60%. The Nomura Tool Presetter is a microscope-type unit that presets a turning tool to the same gauge length. This makes programming and operation much easier. It also makes it unnecessary to "touch off" tools after they are mounted on the machine, making the tool change process a 2-screw operation. With this unit, tooling can be set up even while the machine is running parts. Tooling can be quickly changed, and you can get back into operation fast.

Safety System (Standard Equipment)

Coolant oil cut-off detecton
Stops the machine automatically when the pressure of coolant oil decreases below specified level.
Door safety interlock switch
Causes the main power breaker to trip and the power to shut down when electric cabinet cover is opened.
Lightning surge protection function
Protects electronic circuit from high voltage to shutdown noise such as lightning.
Auto power interception
Switches off the power breaker on the machine automatically when the machine is stopped during the automatic operation for any reason.
Main spindle load detection mode
Stops the machine detecting defects in the main spindle when standard load and actual main spindle load are different.
Cut-off tool breakage detector
Stops the machine automatically detecting materials that cannot be completely cut-off due to the breakage failure of the parting tool.
Tap breakage detector(Option)
Stops the machine automatically detecting broken tap while processing the edge face of the tap.

Optional Accessories

Automatic fire extinguisher
Automatically put out the fire and breaks the power source when fire happens.
Oil mist collector
Collects floating mist and helps for better working environment.
Signal warning light, 3-stage type
Facilitate confirmation in the distance on how the machine is working.

Specification Item

	Specification Item	Specification Value
Max. Machining Capacity	Machining diameter	φ20mm
	Machining length	200mm /1 chuck
	Parts unloading length	93mm
Main Spindle	Main spindle through-hole diameter	φ23mm
Main Spindle	Main spindle RPM ($1,$2)	10,000r.p.m. max.
$1	Max. no. of tools	26
	OD (□12.7×150mmMax)	6
	ID Frontal hole	4 (ER16)
	Live tool	5 (ER16)
	Max. frontal drill diameter	φ10mm
	Max. frontal drill length	40mm
	Max. frontal tap diameter	M8
	Max. live tool spindle drill diameter	φ8mm
	Max. live tool spindle tap diameter	M6
	Live main tool spindle	6,000r.p.m. max.
$2	OD (□12×150mmMax)	2
	ID Frontal hole	3 (ER16)
	Live tool	3 (ER16)
	Off-center frontal hole	3 (ER11)
	Max. frontal drill diameter	φ10mm
	Max. frontal tap diameter	M8
	Max. live tool spindle drill diameter	φ8mm
	Max. live tool spindle tap diameter	M6
	Rapid feed speed rate	36m/min.
	Min. command unit	0.0001mm
	Main spindle C-axis min. command unit ($1,2)	0.0001°
Motor	Main spindle motor	1.5/3.7kW
	Live tool motor	0.75kW
	Back main spindle motor	1.5/3.7kW
	Back live tool motor	0.75kW
	Axis feed motor Y1、Z1、X2	0.5kW
	Axis feed motor X1、Y2、Z2	1.0kW
	Coolant pump ($1,$2)	0.25kW
	Lubricant pump	0.003kW
Dimensions and others	Main spindle center height	1,000mm
	Input power capacity	17kVA
	Pneumatic pressure & flow rate	0.6MPa、50L/min.
	Coolant tank	160L
	Lubricant tank	0.8L
	W×D×H	2,270×1,135×1,730mm
	Weight (incl. options)	2,700kg
NC Standard Function	MITSUBISHI　NC	M70V TypeA
	NC display (10.4 color TFT LCD)
	Machining program memory capacity	1,280m
	Number of tool off-set correction	40pcs.
	Background programming editing function
	Main spindle C-axis function
	User macro function
	Tool nose wear compensation
	Corner chamfering / Corner rounding
	Fixed cycle
	Complex fixed cycle
	Geometric commands
	Operation manual
	Serial In / Output interface
	CF Card interface

Standard Accessories

Main spindle cooling unit ($1, $2)
Main spindle ($1, $2) / Rotary guide bush air-purge
Synchronous rotary guide bush
4 ID (Frontal drill) attachment
Drill holder φ22 (3 pcs.)
Tap holder φ22 (1 pce.)
Tool holder □12.7 (5 pcs.)
Tool holder □12.7 for cut-off (1 pce.)
Main: Chuck sleeve, Spring, Spindle cap (1 set)
Back: Chuck sleeve, Spring, Spindle cap (1 set)
Lightning surge protection function
Main spindle load detection mode
Automatic power interception
Automatic lubricator (with level detector)
Coolant oil unit ($1, $2)
Coolant oil cut-off detector ($1, $2)
Cut-off tool breakage detector
Door safety interlock switch
Override switch
Working light (LED light)
Parts catcher ($2)
Parts conveyor (with parts receiver and basket)
Leveling pads

Optional Accessories

$1
- 5 Live tool unit
- 3 off-center drill + 3 Live tool unit
- Tool holder □12.7 (additional)
- Tool holder □12.7 for cut-off (additional)
- Drill holder for deep hole
- Tap holder for deep hole
$2
- Back 3 ID (Frontal drill) attachment
- Back 3 Live tool unit (A)
- Back 3 Off-center drill (Optional in compimation with (A))
- Back 2 OD tool (Comb type)
Fixed guide bush
Tap breakage detector ($1, $2)
REGO-FIX cap ER16M
Tool presetter 10
Tool air blow (*1) (*2)
Manual pulse generator 37P
NC display language (English / Chinese / Korean and others)
Parts catcher ($1)
Pipe type parts unloader (I.D φ14mm or less)
Spindle tube liner for small parts
Large-sized lubricant pump 1.8L
Signal warning light, 3-stage
Signal warning light, 1-stage
Chip conveyor (*1)
Medium pressure coolant (*1)
Automatic fire extinguisher (*3)
Oil mist collector (*3)
Oil pan for oil mist collector
Dent preventive kit
Specified color
Tooling
Working tool set

(*1) Sub-control board is required.
(*2) Pneumatic pressure manifold is required.
(*3) For the same unit, fire protection dumper is required.

Note:: The above-menlioned machine capabilily is for the case when work material is SUS303.
Depending on the processing condition such as the qualily of work material and the tools to be used，machine capabilities values may differ from the above-mentioned values.; The specification based on the specifications applied within Japan. Specifications are subject to change without notice.; 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.