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Promach Machinery Sdn Bhd
45, Jalan Mutiara Emas 5/16,
Taman Mount Austin,
81100 Johor Bahru,
Johor, Malaysia.
+607-3528355

 +607-3529355
+607-3525355

Our Products

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Features :

  • 1. Rigid Machine Structure
  • (1) The machine structure is manufactured from high quality Meeharite cast iron, heat treated and stress relieved before machining.
  • (2) Sideways are high frequency hardened and precision ground. Maximum material stability for deformation-free and outstanding wear resistance.
  • 2. Precision Spindles
  • (1) The grinding wheel spindle and the regulating wheel spindle are precision machined from Nickel Chromolybedenum alloy steel (SNCM-220). Also, they are subject to various treatments such as: normalized, tempered and carburized hardening. Then, the spindles are thru sub-zero treated – under zero degrees, precision ground and precision machined.
  • (2) The inside of spindle is tempered to hardness HRC 25°~30°, while surface hardness reaches over HRC 62. The precision ground spindle is excellent for heavy-duty machining and features powerful torque, long service life, deformation-free and maximum wear resistance.
  • 3. Slide Table
  • (1) Upper slide swiveling is easy and accurate to adjust for making the machine suitable for infeeding grinding. Also, it allows grinding for a varied diameter fo workpieces. The Upper slide with +5°~-5° swiveling allows taper grinding by using infeed grinding mode.
  • (2) With thrufeed grinding, the Upper slide provides a surface contact adjustment between the workpiece and grinding wheel. Swiveling adjustment range is +5°~-3°.
  • (3) Dovetailed slideway on the upper slide features smooth and accurate feeding and is lubricated by a centralized lubricator.
  • (4) The bottom slide moves on “Λ” shaped and double-wedged ways.
  • The slideways are hardened and precision ground. They feature smooth movement and properly protected to prevent dust from entering. Micrometric feed adjustment unit is 0.001 mm to meet high accuracy requirements for all workpieces.

Specifications:

SPECIFICATIONS PC-12
Grinding Wheel  
Standard grinding range (Dia.) Ø1~Ø40 mm
Capacity increases with special arrangement Ø30~Ø60 mm
Grinding wheel size (O.D. x width x I.D.) Ø305 x 150 x Ø120
Grinding wheel speed 1900 R.P.M.
Grinding wheel motor 7-1/2 HP x 4P
Regulating Wheel  
Regulating wheel size (O.D. x width x I.D.) Ø205 x 150 x Ø90
Regulating wheel speed 20 ~ 337 R.P.M. (10 Steps)
Regulating wheel motor 1HP x 6P
Regulating wheel tilt angle +5° ~ -3°
Regulating wheel swivel angle ±5°
Handwheel Graduation  
Upper slide feed graduation 4 mm/rev.   0.025 mm/graduation
Upper slide micro-feed graduation 0.1 mm/rev.   0.001 mm/graduation
Lower slide feed graduation 7 mm/rev.  0.05 mm/graduation
Lower slide micro-feed graduation 0.2 mm/rev.  0.001 mm/graduation
Trimming device graduation 1.25 mm/rev.   0.01 mm/graduation
Drive Motors  
Hydraulic pump motor 1 HP x 4P
Coolant pump motor 1/8 HP x 2P
Machine Dimensions  
Machine Dimensions 1750 x 1050 x 1400 mm
Net weight 1650 kgs
Gross weight 1900 kgs

Standard Accessories:

1. Regulating wheel and flange (1 set) (mounted on machine)
2. Grinding wheel and flange (1 set) (mounted on machine)
3. Infeed work rest and carbide blade (1 set)
4. Thrufeed work rest and carbide blade (1 set)
5. Standard electric equipment (1 set) ( mounted on machine)
6. Oil tank (1 set) (ind. Oil cooling fan)
7. Standard coolant system (1 set)
8. Diamond tools (2 pcs) (mounted on machine)
9. Work lamp (1 set) (mounted on machine)
10. Tool box and Tools (1 set)

Optional Accessories:

1. Wheel balancing stand and arbor
2. Automatic infeed attachment
3. Manual feeder for infeed grinding (up and down)
4. Hydraulic work ejector (infeed grinding)
5. Automatic loading attachment (thrufeed grinding) (Ø5-20 mm, L100-600 mm)
6. Automatic feeder for thrufeed grinding (hopper type) (Ø2-8 mm, L50-180 mm)
7. Automatic unloading attachment (thrufeed grinding)
8. V Type Supporter for long bar grinding
9. Profile grinding attachment
10. Magnetic coolant separator
11. Magnetic with paper filter
12. Hydrocyclone coolant separator
13. Auto. Loading and unloading attachment (infeed grinding)
14. Vibratory feeder (thrufeed grinding)
15. Large work rest (thrufeed grinding) L:250 – 500 mm