Thread Grinding Machine

SKU: S7520A

S7520A Universal Thread Grinding Machine is generally used in machinery tool shops and measuring tool factories, for grinding thread gauges, ball screws, worm shafts, taps, small-module hobs and thread milling cutter, etc.

The machine shall be kept and operated in a shockproof, temperature-controlled and clean room.

Technical Specifications

 

Specifications Model S7520A
Type 200×750
Max. diameter of workpiece External mm 200
Internal mm 160
Center distance mm 750
Center height mm 120
Thread diameter ground External Single-rib wheel mm 2-200
Multi-rib wheel mm 4-120
Internal mm 25-125
Max. thread length ground External Single-rib wheel mm 500
Multi-rib wheel mm 460
Internal mm 75
Pitch ground External V-typed thread Single-rib wheel mm 0.25-24
Multi-rib wheel mm 1-6
British Teech/inch 3-28
Metric mm 2-24
Module mm 0.3-20Õ
Internal V-typed thread mm 0.5-6
Max. taper of thread ground 1:5
Max. helix angle of thread ground External ±30°
Internal ±6°
Amount of relief mm 0.03-4
Work spindle rotation In grinding r/min 0.2-25; 0.8-100
In rapid movement r/min 25,100
Max. longitudinal traverse of table mm 510
Rapid approach & withdrawal of wheel stock mm/sec 15
Wheel spindle rotation External r/min 1670,2145
Internal r/min 5745,8100,14400,18400
Wheel size External diameter (O.D) mm 300-400
External width mm 10,20,40
Internal diameter (O.D) mm 20-100
Internal width mm 6
Machine size (LxWxH) mm 2500x1800x1800
Machine weight kg 5800
Pitch

accuracy

For single tooth μm ±4
For 25mm long μm ±7
For 100mm long μm ±8
For 300mm long μm ±11
For total length μm ±16