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.
All 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. (ADS model only)
Crossfeed mechanism incorporate with a precision leadscrew, AC inverter provides smooth, accurate crossfeed and allows criss-cross grinding for better workpiece finish.
Hydraulics and coolant systems are separated from machine in order to eliminate vibration issue and dissipate heat.
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 pressure.
PLC control uses a menu-driven LCD touch screen is easy to learn and easy to set. Simply fill in the blanks to set total grinding amount, rough increment, fine increment, spark out passes, feeding direction, parking position, wheelhead retract distance, and press cycle start to complete automatic grinding cycle. (ADS model only)

SPECIFICATIONS			SADDLE TYPE
SPECIFICATIONS			PL-2550DT	PL-3060DT	PL-4080DT
Travel	Grinding surface of table	mm	250 X 500	300 X 600	400 X 800
	Max. grinding surface	mm	250 X 500	300 X 600	400 X 800
	Max. distance center of spindle to table	mm	500 [Option: 600]	500 [Option: 600]	550 [Option: 650]
Feeding	Table speed approx.	M/min	5~25		5~25
	Table guideway		V & Flat way		V & Flat way
	Auto. Cross feed increment approx.	mm	0.1~12	0.5~20
	Rapid power cross feed	mm/min	1100 [60HZ] / 900 [50HZ]	1100 [60HZ] / 900 [50HZ]
	Cross feed on hand wheel	mm	5/rev.; 0.02/gra.	5/rev.; 0.02/gra.
	Vertical feed on hand wheel	mm	2/rev.; 0.01/gra.	2/rev.; 0.01/gra.
	Auto down feed	mm/time	0.001~0.999 [2/rev.; 0.005/gra.]	0.001~0.999 [2/rev.; 0.005/gra.]
Motor	Spindle motor	HP	2	5	5
	Hydraulic pump motor	HP	1	1	2
	Auto Cross feed motor	HP	1/5
	Rapid head elevation motor	HP	4Amp stepping motor
	Coolant pump [Option]	HP	1/8
Wheel	Wheel speed	rpm	3500 [60HZ] / 2900 [50HZ]	1750 [60HZ] / 1450 [50HZ]
Wheel	Wheel dimension	mm	180 X 13 X 31.75	355 X 38 X 127	405 X 50 X 127
Weight	Machine net weight	Kg	1350	1700	3250
Weight	Packing gross weight	Kg	1550	1950	3500
Dimension	Floor space (L X W X H)	mm	2355 X 1920 X 1800	2640 X 2045 X 1800	3465 X 2265 X 1900
Dimension	Packing dimension (L X W X H)	cm	230 X 194 X 220	243 X 230 X 220	290 X 228 X 223

Remark：We reserve the right to modify the specification relating to any of the above machines wirhout notice.