Hi Speed Automatic Cold Saw NISHIJIMAX Model NHC-110

Description

Purchased used from Pat Mooney Saws. Incredible machine!!!. Best used cold saw we have owned out of a half dozen or so. Great for sawing CNC blanks that don't require facing. Unneeded for current operations. For information contact John Griner, Griner Engineering Inc Bloomington In. Ebay does not permit phone or mail to be listed.  Must purchase through Ebay.
Factory Specs
NISHIJIMAX CUTOFF SYSTEMS
Model NHC-110
UsedNHC-100NA – Specifications
Saw Blade
Diameter
360 mm
Kerf
2.6 mm
Bore
50 mm
Teeth
60, 80, & 100
Cutting Range:
Diameter
20-110 mm (3/4” to 4.25”)
Cutting Length
15 mm to 3000 mm
Trim Cut Length
15-99 mm (Zero Trim Cut Optional)
Remnant Length
87-86mm + Cut Length
Trim/Remnant Separation
Signal and Exit Ramp Provided
Saw Spindle Drive
Saw Head
Blade Speeds
50-130 rpm
Speed Control
Inverter
Saw Motor
11 kW 6P
Brake Torque
Max 10kgm
Blade Guide
Ceramic Coating
Chip Clear
Power Brush
15.5 HP Saw Motor
30-150 RPM Blade Speeds
FREQROL Inverter Drive
Precision Torque Control
Oil Chiller for Gear Box (Nishijimax Exclusive)
Nishijimax Machines are built to operate 24 hours per day.
This means that the gearbox is always running and therefore the oil builds up heat.
The OIL CHILLER maintains the gear box at a constant temperature thereby extending the life of the gear box directly, and saw blades and up keep indirectly.
Powder Metal Saw Blade Brake (Nishijimax Exclusive)
Since the saw blade is traveling at a high RPM and chip load, a powder metal brake is used to eliminate vibration as the blade enters the cut.
The efficiency of the brake relates directly to machine up time and blade life.
In addition, the brake is oil cooled for long life.
NC Saw Spindle Feed Axis
(Nishijimax Exclusive)
The saw blade feed rate is controlled via an AC Servo Motor (5 HP) with Encoder, a Mitsubishi Programmable Servo Drive, and a Precision Ball Screw.
This system offers many advantages compared to hydraulic systems, since there will be no fluctuation for temperature or condition of the oil.
A precise feed rate is entered in during set up and is set in the chip load per tooth.
(.01 - .20MM).
A feed rate is set automatically by calculating the saw blade RPM and number of teeth.
The system will feed at the proper rate to maintain the input chip load.
Maximum production and cutting efficiencies are maintained due to this system.
The saw head travels on hardened and ground linear rails.
The linear rails are lubricated automatically by the central lubrication system allowing for long service life.
Feed Control
AC Servo Motor
Servo Motor
3.5 kW
Axial Load
960 kg rating
Rapid Feed
15 m/min
Cutting Feed
0-3000 mm/min
Highlights of this system are as follows:
Mitsubishi Servo Drive and AC Servo Motor
Precision Ball Screw
Chip Load entry with auto calculation of feed rate
Blade Housing
The housing is mounted to the massive saw head.
The housing contains the saw blade.
The saw blade is guided into the Work piece by ceramic guides.
These guides provide 6 point contact to eliminate blade wobble or deflection during sawing.
Saw Blade Lubrication
Saw blade Lubrication is a precision metered system supplied via Air to the cutting edge of the blade.
No flood coolant is used.
The lubricant is used during the sawing of the material.
Method
Precision Drop
Tank Capacity
5 L
Blade Brush
The blade brush is driven from the gearbox so the brush RPM is matched to the saw blade RPM.
Material Clamping System
The material clamping system is hydraulic and is a 4 point system with both horizontal and vertical clamps.
Proximity switches monitor all clamping functions.
The clamping pressure is adjustable.
Fixture
Clamping Force
1,257 kg
Pressure
2.5 MPa
NC material Index Axis
The material index system consists of an AC Servo motor (2 HP) and encoder, a Mitsubishi Servo Drive, Precision Ball Screw and gripper vise.
The gripper vise travels on chrome plated cylindrical rails.
As the gripper vise retracts to position the material, the system retracts to prevent rubbing of the material.
Cutoff lengths of ½” to 118” can be preprogrammed.
Trim cuts of ½” to 1-1/4” ban be preprogrammed and the remnant end is approximately 3-4”, depending on cutoff length.
The stroke is 29-15/16”.
The feed rate is 78 Feet per minute.
Feed Control
Bar Feed Device
AC Servo Motor
Servo Motor
1.5 kW
Feed Speed
24 m/min
Feed Stroke
760 mm
Method
Grip and Carry
Hydraulic System
A 3 HP motor powers the hydraulic pump.
The tank reservoir is 16 gallons.
All valves are easily accessible via a side panel.
A unique gauge system allows for one central gauge to check all pressures.
Hydraulic Unit
Tank Capacity
10L
Power
2.2 kW 4P
Oil Pressure
3.5 MPa
Rate of Flow
25 L/min
Cutting Job Set Up
It takes less than 5 minutes to completely set up a new job.
There are no mechanical changes that need to be made.
All information is set up on the touch screen panel.
Touch Panel Screen
The operator screen is easy to use, as well as provides a wide range of performance data and technical support and self-diagnostics.
All machine functions are available for trouble shooting on the panel.
In addition, part counts, bin counts and blade life are displayed.
Ma
chine Lubrication
All moving parts on the machine are automatically lubricated at time intervals.
This provides long like of the machine.
If the oil reserve becomes empty, the machine will automatically shut down.