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Johor Branch
Promach Machinery
Sdn Bhd
45, Jalan Mutiara Emas 5/16,
Taman Mount Austin,
81100 Johor Bahru,
Johor, Malaysia.
+607-3528355
+607-3529355
+6019-7502089
Mr.Pang Choon Min (Johor)
+6019-7133512
Mr.Andy Khor
+60167349355
+607-3529355
+6019-7502089
Mr.Pang Choon Min (Johor)
+6019-7133512
Mr.Andy Khor
Message Us
Penang Branch
Promach Machinery (PG)
Sdn Bhd
76 (1st Floor),
Jalan Limau Manis 3,
Taman Limau Manis,
14000 Bukit Mertajam,
Penang, Malaysia.
+6019-472 0594
Mr. Heah Tai San
Selangor Branch
Promach Machinery (KL)
Sdn Bnd
No 36, Jalan Utama 1/15,
Taman Perindustrian Puchong Utama,
Seksyen 1, 47140 Puchong,
Selangor, Malaysia.
+6017-396 8310
Mr. Benson Ng Bin Shen
Penang Branch
Promach Machinery (PG)
Sdn Bhd
76 (1st Floor),
Jalan Limau Manis 3,
Taman Limau Manis,
14000 Bukit Mertajam,
Penang, Malaysia.
+6019-472 0594
Mr. Heah Tai San
Selangor Branch
Promach Machinery (KL)
Sdn Bnd
No 36, Jalan Utama 1/15,
Taman Perindustrian Puchong Utama,
Seksyen 1, 47140 Puchong,
Selangor, Malaysia.
+6017-396 8310
Mr. Benson Ng Bin Shen
TAIWAN Brand Centerless Grinder Series
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Features :
- 1 Stable and Rigid Spindle Head
- (1) The spindle runs on precision bearings, assuring maximum spindle stability. It guarantees outstanding accuracy for external and internal diameter grinding and face grinding.
- (2)The spindle head swivels +90°~-30°.
- (3)The spindle head on the 20 series machines provides variable speed changed by frequency inverter.
- (4)The spindle head on the 32 and 42 series is driven by servomotor, providing variable speed.
- 2 Precision Wheel Head
- (1) The grinding wheel spindle is precision machined from high quality alloy steel SNCM-220, normalized, tempered, carburized and sub-zero treated, precision ground and mirror-effect treated. Hardness reaches to over HRC 62°. No deformation, maximum wear resistance and lifetime accuracy are assured.
- 3. Special Hydrostatic Bearing
- (1) The wheel spindle runs by using a special hydrostatic bearing and is especially ideal for precision grinding work. It features high speed, no friction between metals, no heat generation, deformation-free, extra high accuracy and continual use.
- 4. Advanced Hydrostatic Lubrication System
- (1) The slideways of the table and the wheel head are lubricated by an advanced automatic hydrostatical lubrication system. This provides various features, such as extremely smooth movement, added feed accuracy and superior grinding accuracy.
Specifications:
| SPECIFICATIONS | GU20 x 40S |
| Capacity | |
| Distance Between Centers | 400 mm |
| Swivel Over Table | 200 mm |
| Max.Load of Centers | 60 kg |
| Max. External Grinding Diameter | 160 mm |
| Wheel Head | |
| Swivel Angle | ±30° |
| Manual Distance | 135 mm |
| Auto Rapid Advance | 25 mm |
| Sliding Seat Supplementary Displacement | 95 (total 255 mm) |
| Min. Setting Unit | 0.001 mm |
| One Turn of Handwheel (graduation) | 2 (0.005) mm |
| NC Feed Range | 0 ~ 99 mm |
| Grinding Wheel | |
| O.D x Width x I.D | 305 x 38 x 127 |
| Speeds (belt-type) r.p.m | 2085 / 2495 |
| Work Spindle Head | |
| Swivel Angle | 120° (+90° , -30°) |
| Center Taper | MT : 3 |
| Spindle Speeds (variable) .r.p.m | 16 ~ 450 |
| Max. Load of Spindle (tool holder includer) | 15 kg (Max length : 100 mm) |
| Tailstock | |
| Center Taper | MT:3 |
| Stroeke | 20 mm |
| Table | |
| Swivel Angle | -3°, +12° |
| Traverse Speed | 50 ~ 4000 mm/min |
| Auto. Reciprocate Min. Stroke | 8 mm |
| Feed of One Turn of Handwheel (2-step) | 20 mm (2mm) |
| Motor | |
| Wheel Spindel | 2.1 kw (4P) |
| Workhead Spindle | 0.75 kw (4P) (Inverter) |
| Hydraulic Pump | 0.75 kw (6P) |
| Wheel Spindel Lubrication Pump | 0.18 kw (2P) |
| Coolant Pump | 0.18 kw (2P) |
| Internal Grinding Spindle | 0.375 kw (2P) |
| Tank Capacity | |
| Wheel Spindle Lubricant Tank | 12 L |
| Hydraulic Fluid Tank | 65 L |
| Coolant Tank | 100 L |
| Machine Weight | |
| kgs | 2000 kg |
Standard Accessories:
1. Grinding Wheel and Flange (1 set)
2. Diamond Tool Holder (Table mounted type) (1 pc)
3. Tool and Kits (1 set)
4. Carbide Tipped Work Centers (2 pcs)
5. Coolant Equipment (1 set)
6. Hydraulic Pump with Tank (1 set)
7. Work Lamp (1 pc)
2. Diamond Tool Holder (Table mounted type) (1 pc)
3. Tool and Kits (1 set)
4. Carbide Tipped Work Centers (2 pcs)
5. Coolant Equipment (1 set)
6. Hydraulic Pump with Tank (1 set)
7. Work Lamp (1 pc)
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Optional Accessories:
1. Internal grinding attachment (including 3-jaw chuck and one spindle)
2. Diamond tool holder for internal and external grinding wheel dressing (upward open type)
3. Diamond tool holder (Tailstock mounted type)
4. Diamond tool holder for internal and external grinding wheel dressing (sideward open type)
5. Angle trimming device
6. Radius trimming device
7. Cam locked driving dogs (6 pcs/set)
8. Work steady rest (2 pcs/set)
9. 2-point steady rest
10. 3-point steady rest
11. Adjustable 3-jaw scroll chuck
12. Adjustable 4-jaw scroll chuck
13. Magnetic coolant separator
14. Magnetic with paper filter
15. Wheel forming device for NC model (Manual No auto. compensation)
16. Wheel forming device for NC model (Auto. Compensation)
17. Wheel balancing stand and arbor
2. Diamond tool holder for internal and external grinding wheel dressing (upward open type)
3. Diamond tool holder (Tailstock mounted type)
4. Diamond tool holder for internal and external grinding wheel dressing (sideward open type)
5. Angle trimming device
6. Radius trimming device
7. Cam locked driving dogs (6 pcs/set)
8. Work steady rest (2 pcs/set)
9. 2-point steady rest
10. 3-point steady rest
11. Adjustable 3-jaw scroll chuck
12. Adjustable 4-jaw scroll chuck
13. Magnetic coolant separator
14. Magnetic with paper filter
15. Wheel forming device for NC model (Manual No auto. compensation)
16. Wheel forming device for NC model (Auto. Compensation)
17. Wheel balancing stand and arbor
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