Audited Supplier
GU20 x 40NC
1 Year
1 Year
Tool Grinding Machine
CNC
Automatic
High Precision
ISO 9001
New
Maximized
HRC62°
Advanced Hydrostatic
High
Palmary
Wooden Case
2000 kgs
China
Product Description
| Moudel Name | GU20x40NC | |
| Item | Specification | |
| Capacity | Swivel over table | Ø210 mm |
| Distance between centers | 400 mm | |
| Max. external grinding diameter | Ø200 mm | |
| Max. load of centers | 60 kgs | |
| Grinding wheel | O.D. x width x I.D. | Ø355 x 38 x Ø127 mm |
| Linear velocity | 45 M/s | |
| Grinding wheel - X axis | Manual distance | 135 mm |
| Auto. rapid advance | 25 m/min | |
| Max. stroke | 185 mm | |
| Min. setting unit | 0.001 mm | |
| One turn of handwheel (graduation) | 2 (0.005) mm | |
| Table - Z axis | Traverse speed | 1.5 m/min |
| Max. stroke | 480 mm | |
| Auto. reciprocate min. stroke | 8 mm | |
| Feed of one turn of handwheel (2-step) | 20 mm (2 mm) | |
| Swivel angle | -3° , +12° | |
| Work spindle head | Swivel angle | -30° ~ +90° |
| Center taper | M.T. No. 3 | |
| Spindle speed (variable) | 10~300 r.p.m. | |
| Max. load of spindle (tool holder included) | 15 kgs (max. length: 100 mm) | |
| Tailstock | Center taper | M.T. No. 3 |
| Stroke | 20 mm | |
| Fine adjustment range | ±0.03 mm | |
| Motor | Wheel spindle | 2.2 kW (4P) |
| Work spindle (AC Servo Motor) | 0.37 kW (4P) Frequency | |
| Hydraulic pump | 0.37 kW (4P) | |
| Wheel spindle lubrication pump | 0.18 kW (4P) | |
| Coolant pump | 0.18 kW (2P) | |
| Internal grinding spindle (opt.) | 0.18 kW (2P) | |
| Power | Total voltage | 7 KVA |
| Tank | Wheel spindle lubricant tank | 7 L |
| Hydraulic tank | 46 L | |
| Coolant tank | 110 L | |
| Machine weight | New weight | 2000 kgs |
PALMARY high precision cylindrical grinders are unmatched in structural rigidity and stability, grinding accuracy and operational convenience. Each machine provides maximum operational flexibility thereby allowing for various grinding operations. You will get extra value when putting a PALMARY cylindrical grinder on your production line.
Stable and rigid spindle head
·The spindle runs on precision bearings, assuring maximum spindle stability. It guarantees outstanding grinding accuracy for external dia., internal dia. (optional) & end face.
·Rotation angle +90° ~ -30°.
·20 series spindle head adopts variable speed.
·32 & 42 series spindle head is servo motor driven with variable speed.
·Rotation angle +90° ~ -30°.
·20 series spindle head adopts variable speed.
·32 & 42 series spindle head is servo motor driven with variable speed.
Special hydrostatic bearing
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.
Precision wheel head
The grinding wheel spindle is made of SNCM-220 high grade alloy steel, which is normalised, tempered, carburized and sub-zero treated. The surface hardness reaches HRC62° and above. The surface hardness reaches above HRC62°, which guarantees no deformation, wear-resistant and high precision.
Various grinding application
·GU20x40NC Cylindrical Grinding Machine is capable of processing higher hardness materials, such as hardened steel, cemented carbide, etc.; it can also process brittle materials, such as glass and granite. The grinding machine can make high precision surface roughness very small grinding, also can carry out high efficiency grinding, such as powerful grinding.
·One grinder allows straight plunge grinding, shoulder grinding, traverse grinding, end face grinding, taper grinding & internal grinding (optional) functions for different machining purpose.
·One grinder allows straight plunge grinding, shoulder grinding, traverse grinding, end face grinding, taper grinding & internal grinding (optional) functions for different machining purpose.
Advanced Hydrostatic Lubrication SystemTailstock lubrication system
The sliding surfaces of the table and wheel base are lubricated by an advanced hydrostatic automatic lubrication system, which has the advantages of smooth sliding, precise tool feeding, and everlasting accuracy.
