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PRECISION CENTERLESS GRINDER
 Price List
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FEATURES :
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MACHINE STRUCTURE
The base of the machine is made of high grade cast
iron which ensures machine life and rigidity.
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SLIDE WAYS
The sideways of regulating wheel are casted of double
reverse V type and precisely hand scraped & coated with Turcite B,
allowing a smooth movement & longevity.
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GRINDING & REGULATING WHEEL SPINDLES
Both of the grinding
wheel and regulating wheel spindles are made of NI-CR-MO alloy steel and
are sufficiently carbonized, hardened and ground to obtain high accuracy
and long life. The regulating wheel is inclinable for ±5o to meet
different grinding demands. The spindles are retrofitted with
Hydra-static Babbitt bearings and Auto Lube System. When the spindles
rotate, they automatically create oil film between the spindle and
bearings to prevent any metallic contacts so as to ensure accuracy and
spindle life. A pressure micro switch is fitted to
detect oil pressure on the auto lube system. Spindles will not rotate
under insufficient pressure in the interest of safety and machine life
enabling free of maintenance.
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AUTO LUBRICATION SYSTEM
This unit is fitted as a standard to
provide sufficient lubrications for both wheel spindles, while a
one-shot lubricator is utilized for sideways, to obtain smooth
movement & long life.
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HYDRAULIC DRESSING ATTACHMENT
The hydraulic dressing attachment
is furnished as a standard for both grinding & regulating wheel, and
is capable of various profile truing in conjunction of template.
Dressing speed is infinitely variable and driven by hydraulic.
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ELECTRICAL CABINET A concise electrical cabinet is equipped for
convenient maintenance and service.
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CONTROL PANEL Control panel is utilized for easy
operation.
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SPECIFICATION :
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STC-12
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STC-20
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GENERAL
CAPACITY
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Max. grinding diameter (with standard
workrest)
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 1~30mm (0.04"~1.18")
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1~50mm (0.04"~2")
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Max. grinding diameter (with special
workrest)
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30~50mm (1.18"~2")
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50~90mm (2"~3.54")
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Infeed grinding range
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2~30mm(0.08"~1.18")
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2~50mm(0.08"~2")
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GRINDING
WHEEL
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Wheel size (dia x width x bore)
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305 x 140 x 127 (12" x 5.51" x
5")
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508 x 200 x 305 (20" x 8" x
12")
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Spindle speed
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1900 rpm
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1070 rpm
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Feed of dressing handwheel per
graduation
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0.02mm(0.05")
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0.01mm(0.075")
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Feed of dressing handwheel per
revolution
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2mm(0.05")
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1.5mm(0.075")
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REGULATING
WHEEL
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Wheel size (dia x width x bore)
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200x140x90mm(8"x5-1/2"x3-1/2")
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305x200x127mm(12"x8"x5")
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Spindle speeds (10 steps)
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15~310 rpm
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13~308 rpm
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Feed of handwheel per graduation
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0.04mm(0.002")
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0.04mm(0.002")
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Feed of handwheel per revolution
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4mm(0.16")
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4mm(0.16")
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Swiveling angle (L&R)
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±5o
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±5o
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Inclining angle (for&rev)
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±5o
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±5o
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Feed of dressing handwheel per
graduation
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0.02mm(0.05")
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0.01mm(0.075")
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Feed of dressing handwheel per
revolution
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2mm(0.05")
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1.5mm(0.075")
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Rapid feed of saddle handwheel
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per graduation
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0.025mm(0.00125")
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0.05mm(0.0002")
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per revolution
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5mm(0.20")
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6mm(0.24")
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Rapid feed of saddle handwheel
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per graduation
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0.001mm(0.00005")
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0.001mm(0.00005")
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per revolution
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0.2mm(0.0008")
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0.15mm(0.00625")
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MOTORS
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Grinding wheel motor
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5 HP (4P)
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20 HP (4P)
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Gear box motor
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1 HP (4P)
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2 HP (4P)
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Coolant pump
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1/8 HP
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1/4 HP
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Hydraulic motor
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1 HP (4P)
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WEIGHT
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Net (Approx)
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1200 kg (2640 lb)
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3000 kg (6600 lb)
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Gross (Approx)
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1500 kg (3300 lb)
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3300 kg (7200 lb)
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PACKING
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Length x Width x Height
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178 x 133 x 164cm (70" x 53" x
65")
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224 x 206 x 215cm (89" x 82" x
85")
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NOTE : The contents of this brochure are for
reference only and are subject to change without
notice.
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