HYDRODYNAMIC BEARING

• The spindle is supported by oil membrane, as almost without metal contact between bearing and spindle, the spindle is less wearing and has a long and lasting life.
• The oil membrane between bearing and spindle increases contact area, and therefore, workpieces can reach the highest precision and roundness.
• Oil menbrane absorbs vibration during grinding process,the workpieces will be kept the best surface roughness.
• The wheel spindle is supported is supported by 3kg/cm² low pressure oil at radial direction.

SPINDLE TRANSMISSION SYSTEM

• Belt tension force is resisted by fix bushing.
• The spindle pulley is equipped with buffering pad.

HYDROSTATIC BEARING/ HYDRODYNAMIC BEARING

• The instant impact force caused by motor starting is absorbed by buffering pad.
• The impact force does not directly affect the wheel spindle.

ONE-PIECE FABRICATED BASE DEFORMATION-FREE

• The machine base is one-piece manufactured from Meehanite cast iron, tempered for maximum stability of material.
• Box type base construction feaures superior stability and rigidity.
• The base permits fast coolant exhaust,preventing thermal deformation from influencing machine accuracy.

WHEELHEAD FEEDING SADDLE

• The wheelhead moves on double "V"slideways.
• Top slideway surfaces are coated with Turcite-B and precision scraped.
• Equipped with high resolution 0.0005mm linear scale for close-loop feedback.

TOUCH PROBE GAUGE

• Measure the position and calculate the distance
• Measure the position

AUTO IN-PROCESS GAUGE

• Measuring workpiece OD, grinding and measuring simultaneously, improve production yield.
• Inspecting workpiece roundness after grinding, and feed back to controller.
• Inspecting workpiece accuracy after grinding.

AUTOMATIC GRINDING WHEEL BALANCING SYSTEM

• Grinding wheel automatic balancing while rotating.
• During machine operation if grinding wheel unbalancing, the device automatic adjust wheel balance, it has no need to dismount grinding wheel.

CRASH CONTROL

• When over grinding workpiece, grinding wheel immediately retract, to avoid machine damage.
• While grinding, the audio frequency function can shorten rapid traverse time, improve grinding efficiency.

WORK HEAD MAXIMUM RIGIDITY! HIGH PRECISION!

• The catridge is supported by 8 P4-class angular contact ball bearings and roller bearings at front and rear end. This assures outstanding machining stability and makes the machine ideal for heavy duty machining.
• FANUC servo motor dive.
• The spindle provides centering and synchronized motion functions. Fast interchange between center and chuck.
• The work head pemits 90°counter-clockwise swiveling and 30 ° clockwise,making the machine suitable for various grinding modes.

HYDRAULIC TAILSTOCK

• The sleeve movement is hydraulically operated for convenient workpiece loading and unloading.
• With foot pedal to control workpiece clamping and unclamping.
• Workpiece clamping and unclamping force can be adjusted by turning a knob.
• The sleeve is precision machined from hardened alloy, featuring maximum wear resistance and rigidity.

VARIETY GRINDING CYCLES

TOTAL DESIGN FOR USER NEEDS ! MOST PRACTICAL ! EAY OPERATION !

• Plunge without oscillation
• Plunge with oscillation
• Angle plunge grinding
• Multi-plunge grinding
• Traverse grinding
• Multi-plunge taper grinding
• Traverse taper grinding
• Shoulder plunge without oscillation
• Shoulder traverse grinding
• Shoulder plunge with oscillation

FORM TYPE INPUT! EASY TO EDIT PROCESSING MODE

• Using special form type design, easy and fast to edit program for different grinding cycles
• Using regular program but NC editing, user can edit any processing mode
• Easy to expand special grinding cycle, for any processing needs
• Offering foreign warranty service assure the accuracy and stability
• Basic, grinding, dressing auxiliary four types of grinding cycle

HYDRAULIC PRESSURE SENSOR

HYDRODYNAMIC

• The pressure switch provides pressure sensing function, the spindle can't start until lubrication oil pressure reaches the setting value. In case hydraulic system is abnormal, spindle running stops.

HYDRAULIC PRESSURE SENSOR

HYDROSTATIC

• The pressure switch provides pressure sensing function, the spindle can't start until lubrication oil pressure reaches the setting value. In case hydraulic system is abnormal, spindle running stops.

HYDROSTATIC BEARINGSL SYSTEM

• Hydrodynamic: The hydrostatic bearings system includes high pressure filter can, accumulator, pressure switch, check valve and throttle valve. Pressure can be adjusted in axial and radial direction.
• Hydrostatic: In case power failure occurs, the accumulator may keep pressure for 5 minutes.

AUTOMATIC LUBRICATION SYSTEM

• All moving and running parts are lubricated by automatic lubrication system.
• The lubrication system is separately mounted from the machine to avoid vibration and facilitate heat dissipation.
• With oil constant temperature cooler.

Function	ITEM		CNC PLUNGE					CNC ANGULAR
			JHP-2003CNC	JHP-3506CNC	JHP-4006CNC	JHP-3510CNC	JHP-4010CNC	JHA-2003CNC	JHA-3505CNC	JHA-4005CNC	JHA-3508CNC	JHA-4008CNC
Capacity	Max. work swing		Ø200mm	Ø350mm	Ø400mm	Ø350mm	Ø400mm	Ø200mm	Ø350mm	Ø400mm	Ø350mm	Ø400mm
	Max. grinding length		300mm	600 mm		1000 mm		300 mm	520 mm		820 mm
	Max. grinding dia.		Ø200mm	Ø330	Ø380	Ø330	Ø380	Ø200mm	Ø330	Ø380	Ø330	Ø380
	Max. job weight		80kg	150kg				80kg	150kg
	Distance between centers		300mm	600 mm		1000 mm		300 mm	600 mm		1000 mm
	Center height		100	175	200	175	200	100	175	200	175	200
Grinding wheel	Grinding wheel sizes		Ø355orØ405	Ø510x50 ~ 100xØ203.2				Ø405x38 ~ 50xØ127	Ø610x50 ~ 100xØ203.2
	Grinding wheel speed		1780rpm	1250 rpm				1560 rpm	1250 rpm
	Max. peripheral speed		33 m/sec	33 m/sec				33 m/sec	40 m/sec
Wheel head	Feed angle		90°					60°
	Swivel angle		±0°					±0°
	Rapid traverse speed		6 m/min					6 m/min
	Max. travel		220mm	280 mm				220 mm	280 mm
	Min. setting unit		0.0001 mm					0.0001 mm
	Grinding feed rate		0.001 ~ 6000 mm/min					0.001 ~ 6000 mm/min
	Hydrostatic pressure		_	Hydrodynamic 3kg / Hydrostatic 20kg				_	Hydrodynamic 3kg / Hydrostatic 20kg
Tailstock	Retraction of sleeve		30 mm					30 mm
	Sleeve diameter		D: 48mm	D: 70 mm				D: 48 mm	D: 70 mm
	Center taper		NO#3	NO#4 (Opt. NO.#5)				NO#3	NO#4 (Opt. NO.#5)
	Hydraulic cylinder pressure		20 kg					20 kg
Wrok head	Spindle speed (variable)		10 ~ 500 rpm/min					10 ~ 500 rpm/min
	Center taper		NO#3	NO#4 (Opt. NO.#5)				NO#3	NO#4 (Opt. NO.#5)
	Spindle type		Cartridge type (Opt.)					Cartridge type (Opt.)
	Swivel angle		120 (90CCW ; 30CW)					120 (90CCW ; 30CW)
Work table	Swivel angle (C.W.)		+10	+9		+7		+10	+9		+7
	Swivel angle (C.C.W.)		-3	-5		-4		-3	-5		-4
	Rapid traverse speed		8 m/min	10 mm/min				8 mm/min	10 mm/min
	Min. setting unit		0.0001 mm					0.0001 mm
	Max. travel		640 mm	700 mm		1100 mm		640 mm	600 mm		900 mm
	Grinding feed rate		0.001 ~ 6000 mm/min					0.001 ~ 6000 mm/min
Motor	Grinding wheel spindle		5HP 4P(Opt.7.5HP 4P)	7.5HP 4P (Opt.10HP 4P)				5HP 4P (Opt. 7.5HP 4P)	10HP 4P (Opt.15HP 4P)
	Work head		1.0KW	1.5KW				1.0KW	1.5KW
	Work table feeding (Z-axis)		1.2KW	1.8 KW				1.2KW	1.8 KW
	Wheel table feeding (X-axis)		1.2KW	1.8 KW				1.2KW	1.8 KW
	Hydraulic pump		1/4HP 4P	1HP 4P				1/4HP 4P	1HP 4P
	Wheel head pump		_	Hydrodynamic 1HP 4P / Hydrostatic 2HP 4P				_	Hydrodynamic 1HP 4P / Hydrostatic 2HP 4P
	Coolant pump		1/8HP 2P	1/2HP 2P				1/8HP 2P	1/2HP 2P
	Magnetic coolant separator		1/25HP 2P	1/25HP 2P				1/25HP 2P	1/25HP 2P
	Oil cooler		_	Hydrostatic wheel head 600W / Hydrodynamic wheel head 400W / Slide way 250W				_	Hydrostatic wheel head 600W / Hydrodynamic wheel head 400W / Slide way 250W
Oil tank	Hyd. Oil tank (slideways, screw ends & measurement)		30L	60L				30L	60L
	Wheel head lubrication		_	50L				_	50L
	Coolant tank		80L	160L				80L	160L
Machine	N.W.	Fully enclosed	3800kg	7460kg		8080kg		3800kg	7460kg		8080kg
		Semi enclosed	3600kg	6840kg		7800kg		3600kg	6840kg		7800kg
	G.W.	Fully enclosed	4100kg	7860kg		8480kg		4100kg	7860kg		8480kg
		Semi enclosed	3900kg	7240kg		8200kg		3900kg	7240kg		8200kg
	Machine dimensions (LxWxH)	Fully enclosed	3.3x2.1x2.2	5.0x2.1x2.2		5.8x2.1x2.2		3.3x2.1x2.2	5.0x2.1x2.2		5.8x2.1x2.2
		Semi enclosed	3.2x2.1x2.2	4.2x2.1x2.2		5.1x2.1x2.2		3.2x2.1x2.2	4.2x2.1x22		5.1x2.1x2.2
	Packing dimensions (LxWxH)	Fully enclosed	3.5x2.2x2.2	5.2x2.2x2.2		6.0x2.2x2.2		3.5x2.2x2.2	5.2x2.2x2.2		6.0x2.2x2.2
		Semi enclosed	3.4x2.2x2.2	4.4x2.2x2.2		5.3x2.2x2.2		3.4x2.2x2.2	4.4x2.2x2.2		5.3x2.2x2.2
* All specifications are subject to change without notice.

	3505A/3506P Fully enclosed	3508A/3510P Fully enclosed	4005A/4006P Semi-enclosed	4008A/4010P Semi-enclosed
A	2880	3680	2880	3680
B	874	987	634	747
C	1221	1173	709	661
D	4975	5790	4223	5088

	2003A Semi-enclosed	2003P Semi-enclosed	2003A Fully enclosed	2003P Fully enclosed
A	1650	1650	1650	1650
B	713	731	760	760
C	830	731	840	840
D	3193	3112	3250	3250