STP-SERIES
Description
- All essential castings are rib reinforced to provide a rigid machine structure for long lasting accuracy and stability.
- The precision cartridge spindle equipped with 4 pieces of preloaded class 7 (p4) super precision angular contact ball bearings to ensure high accuracy and superior grinding finish.
- Spindle, couplings, and spindle motor (7.5HP) are precisely balanced for low vibration and powerful output to achieve precision grinding accuracy.
- Rigid table with box-type structure travels on a cushion of oil with no metal-to-metal contact to provide excellent way longevity.
- Column guideways are Turcite-B coated and precisely hand scraped to provide a smooth movement for better accuracy and longer way life.
- The rigid wheelhead travels on wide contact hardened and ground guideways and is precisely positioned with a stepping motor to ensure better downfeed repeatability.
- Crossfeed mechanism incorporate with a precision ball screw, AC inverter provides smooth accurate crossfeed and allows criss-cross grinding for better grinding surface finish.
- Hydraulic, coolant and lubrication systems are separated from machine to eliminate vibration and dissipate heat. Heat exchange is used on hydraulic system to maintain normal temperature of hydraulic oil.
- All moving surfaces and rotating parts are continuously lubricated by an auto-lube system to ensure long service life and maintain maximum accuracy. An alarm light will illuminate if oil pressure drops below present pressure.
- Positioning accuracy and repeatability is assured with an AC servo motor and high precision pre-tensioned ballscrew.
Specifications
| Description/Model | PL-1224CNC | PL-1632CNC | |
|---|---|---|---|
| General Capacity | Table Size (mm) | 300×600 (12"×24") | 400 × 800 (16" × 32") |
| X Axis Travel (mm) | 600 (24") | 800 (32") | |
| Z Axis Travel (mm) | 300 (12") | 400 (16") | |
| Grinding Wheel | Distance btw Spindle Center to Table (mm) | 550 (22") | |
| Mag. Chuck Weight / Height | 86 | 152 | |
| Max. loading of table (kg) | 800 | 1000 | |
| X Axis | X Axis Manual Traverse (mm) | 850 (33") | 1050 (41") |
| X Axis Hydraulic Travel (mm) | 800 (32") | 1000 (40") | |
| Hydraulic Cylinder Specification(NC type) (mm) | Ø35 × Ø20 × 850 | Ø35 × Ø20 ×1050 | |
| Primary Hydraulic Pressure (kg/m2) | 20 | ||
| Hydraulic Pump Capacity (Q L/min) | 28 | ||
| Maximum Feeding Speed of Working Table (M/ min) | 25 | ||
| X Axis Servo Motor Power (kW) | 1.8(CNC) | ||
| Y Axis | Rapid Feeding Rate (M/ min) | 1.5 | |
| Electric Hand Wheel Shifting Unit (mm) | 0.1 / 0.01 / 0.001 | ||
| Y Axis Servo Motor Power (kW) | 1.8kw | ||
| Z Axis | Rapid Feeding Rate (M/ min) | 4 | |
| Electric Hand Wheel Shifting Unit (mm) | 0.1 / 0.01 / 0.001(CNC) | ||
| Z Axis Servo Motor Power (kW) | 1.2kw (CNC) | ||
| Wheelhead( X Axis ) | Grinding Wheel (mm) | Ø355 ×50 × Ø127 (Ø14" × 2"× Ø5") | |
| Wheel Linear Velocity (M/min) | 2000 | ||
| Spindle Motor Power (kW) | 3.75 (opt. 5.6) | ||
| Max. Wheel Spindle Speed (rpm) | 1800 | ||
| Coolant System | Coolant Pump | 80 L/min 0.7kg/cm2 | |
| Hydraulic System | Pump Motor Power (kW) | 3.7 | |
| Hydraulic Pump | 20 L/min 55kg/cm2 | ||
| Lubrication System | Lubrication Pump | 5.2 L/min 10kg/cm2 | |
| Machine Size/ Weight | Net Weight (kgs) | 3300 (7275lbs) | 4100 (9038lbs) |
| Gross Weight (kgs) | 3600 (7936lbs) | 4500 (9920lbs) | |
| L x W x H(mm) | 2850×2280×2450 (112"×90"×96") | 3020×2280×2450 (119"×90"×96") | |
Remark：We reserve the right to modify the specification relating to any of the above machines wirhout notice.
Features
- Balancing Stand
- Electromagnetic Chuck
- Auto. Demagmetizer
- Permanent Magnetic Chuck
- Digital Readout
- Spare Wheel Flange
- Dust Collector
- Radius Dressing Attachment
- Angle Dressing Attachment
- Parallel Fressing Attachment
- Coolant System W/Paper Filter
- Combine Coolant & Dust Collector
- Coolant System W/Mag. Sep. & Paper Filter
- Manual Demagnetizer (For Permanent Chuck Use)