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Spring-end grinding machines Series WNM by WNJ

Spring-end grinding machines Series WNM by WNJ include models WNM12, WNM12-2, WNM2.5, WNM6, WNM9, WNM9-2—reliable and high-precision equipment engineered to efficiently handle both small-batch and mass production tasks. All models share a modern control system, robust construction, and a high degree of automation, while differing in specifications, configuration, peripherals, and optional equipment.

Use the table below to quickly compare key specifications and select the machine that best fits your production requirements.

WNJ WNM

CNC Spring-end grinding machine WNM12

Model: WNM12
Price on Request
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Specifications

Basic feauturies
Control CNC
Spring feeding method Downfeed
Capability
Spring diameter 20mm — 120mm
Wire diameter 3mm — 12mm
Spring lenght 20mm — 500mm
Working area
Number of trays 1pcs / 740mm
Quantity of grinding wheels 2pcs
Grinding wheel size 660mm x 170mm x 100mm
Grinding wheel rotation speed 965rpm
Engines and power supply
Total motor power 31kW
Lower Compensation Motor 0.37kW
Upper compensating motor power 2kW
Grinding motors power 11kW / 11kW
Motor power of tray rotating 3kW
Voltage 380V / 50Hz
Change Plate Motor -
Feed motor power -
Overall dimensions and weight
Weight 8400kg
Overall length 2600mm
Overall width 2400mm
Overall height 3200mm
WNJ WNM

CNC Spring-end grinding machine WNM12-2

Model: WNM12-2
Price on Request
More Details

Specifications

Basic feauturies
Control CNC
Spring feeding method Downfeed
Capability
Spring diameter 20mm — 120mm
Wire diameter 3mm — 12mm
Spring lenght 20mm — 400mm
Working area
Number of trays 2pcs / 740mm
Quantity of grinding wheels 2pcs
Grinding wheel size 660mm x 170mm x 100mm
Grinding wheel rotation speed 950rpm
Engines and power supply
Total motor power 36kW
Lower Compensation Motor 0.37kW
Upper compensating motor power 0.25kW
Grinding motors power 11kW / 11kW
Motor power of tray rotating 3kW х 2pcs
Voltage 380V / 50Hz
Change Plate Motor 2.2kW
Feed motor power -
Overall dimensions and weight
Weight 8600kg
Overall length 2600mm
Overall width 3200mm
Overall height 3300mm
WNJ WNM

CNC Spring-end grinding machine WNM2.5

Model: WNM2.5
Price on Request
More Details

Specifications

Basic feauturies
Control CNC
Spring feeding method Downfeed
Capability
Spring diameter 5mm — 40mm
Wire diameter 0.3mm — 2.5mm
Spring lenght 8mm — 80mm
Working area
Number of trays 1pcs
Quantity of grinding wheels 2pcs
Grinding wheel size 220mm x 50mm
Grinding wheel rotation speed 2840rpm
Engines and power supply
Total motor power 4kW
Lower Compensation Motor 0.18kW
Upper compensating motor power -
Grinding motors power 1.5kW / 1.5kW
Motor power of tray rotating 0.2kW
Voltage 380V / 50Hz / Three phase / AC
Change Plate Motor -
Feed motor power 0.18kW
Overall dimensions and weight
Weight 1360kg
Overall length 1300mm
Overall width 1550mm
Overall height 1900mm
WNJ WNM

CNC Spring-end grinding machine WNM6

Model: WNM6
Price on Request
More Details

Specifications

Basic feauturies
Control CNC
Spring feeding method Downfeed
Capability
Spring diameter 5mm — 60mm
Wire diameter 0.8mm — 6mm
Spring lenght 10mm — 200mm
Working area
Number of trays 1pcs
Quantity of grinding wheels 2pcs
Grinding wheel size 400mm x 55mm
Grinding wheel rotation speed 1440rpm
Engines and power supply
Total motor power 10kW
Lower Compensation Motor 0.37kW
Upper compensating motor power 1kW
Grinding motors power 3kW / 3kW
Motor power of tray rotating 1.5kW
Voltage 380V / 50Hz
Change Plate Motor -
Feed motor power -
Overall dimensions and weight
Weight 2180kg
Overall length 1700mm
Overall width 1450mm
Overall height 2300mm
WNJ WNM

CNC Spring-end grinding machine WNM9

Model: WNM9
Price on Request
More Details

Specifications

Basic feauturies
Control CNC
Spring feeding method Downfeed
Capability
Spring diameter 10mm — 100mm
Wire diameter 1mm — 9mm
Spring lenght 10mm — 400mm
Working area
Number of trays 1pcs / 740mm
Quantity of grinding wheels 2pcs
Grinding wheel size 450mm x 65mm
Grinding wheel rotation speed 1465rpm
Engines and power supply
Total motor power 20kW
Lower Compensation Motor 0.18kW
Upper compensating motor power 1kW
Grinding motors power 7.5kW / 7.5kW
Motor power of tray rotating 1.5kW
Voltage 380V / 50Hz
Change Plate Motor -
Feed motor power -
Overall dimensions and weight
Weight 3300kg
Overall length 2100mm
Overall width 1900mm
Overall height 2750mm
WNJ WNM

CNC Spring-end grinding machine WNM9-2

Model: WNM9-2
Price on Request
More Details

Specifications

Basic feauturies
Control CNC
Spring feeding method Downfeed
Capability
Spring diameter 10mm — 60mm
Wire diameter 1mm — 9mm
Spring lenght 10mm — 400mm
Working area
Number of trays 2pcs / 580mm
Quantity of grinding wheels 2pcs
Grinding wheel size 450mm x 80mm x 65mm
Grinding wheel rotation speed 1400rpm
Engines and power supply
Total motor power 23kW
Lower Compensation Motor 0.18kW
Upper compensating motor power 1kW
Grinding motors power 7.5kW / 7.5kW
Motor power of tray rotating 1.5kW х 2pcs
Voltage 380V / 50Hz
Change Plate Motor 1.5kW
Feed motor power -
Overall dimensions and weight
Weight 4300kg
Overall length 2250mm
Overall width 2400mm
Overall height 2750mm