Factory Directly Supply Palmary PC-12s Centerless Grinding Machine High Speed Grinder

Product Description

Centerless Grinders Economic Servo Type PC-12S
Product Parameters

Model	PC-12S
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 mm
Linear velocity	33 M/s
Grinding wheel motor	7.5HP x 4P (5 kW)
Regulating Wheel
Regulating wheel size (O.D. x width x I.D.)	Ø205 x 150 x Ø90 mm
Regulating wheel speed	10~300 r.p.m. (variable speed)
Regulating wheel motor	1.5 kW servo motor
Regulating wheel tilt angle	±5°
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/raduation
Trimming device graduation	1.25 mm/rev / 0.01 mm/graduation
Motor
Hydraulic pump motor	1HP x 4P
Coolant motor	1/8HP x 2P
Lubrication	Manual Lubricator
Tank
Coolant tank	100 L
Hydraulic tank	53 L
Lubrication	0.6 L
Weight
New weight	1700 kgs

Product Description
Introduction
Centerless Grinders Economic Servo Type PC-12S Series is a high-quality grinder manufactured by Palmary. Different from traditional standard models, this series of grinders adopt servo motor to drive the regulating wheel speed, featuring low rotational speed and high torque. This improves the operation of the regulating wheel more precise and easier to operate. Its economical mechanical structure makes it an affordable choice for machining.
Precision Spindles
The GW spindle and the RW spindle are precision machined and made from alley steel (SNCM-220), processed with normalization, aging, and heat treatment, then proceed to sub-zero treatment, finally finished after precision machining and grinding. The internal hardness of the spindle is tempered to HRC 25°~30°. The surface hardness is up to HRC 62°. The spindle is resistant to heavy cutting and precision grinding, with strong torque, durability, no deformation, and wear resistance.
Feed Screw
The feed screw is manufactured from alloy steel. It's also normalized, high frequency harden and precision ground in order to have high feeding accuracy and excellent wear resistance.
Pressure Switch
When starting the GW and RW spindle, this pressure switch allows starting only when oil enters into bearings thereby providing safety protection for the spindle bearings.
Lubrication System
The automatic lubricator provides lubrication to the GW spindle. Also all slideways are lubricated by a centralized lubrication system, ensuring proper lubrication and feeding accuracy.
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