18YRS
JAINNHER MACHINE CO., LTD.
Products
Cylindrical Grinding Machine
CNC Plunge/Angular Cylindrical Grinder
JHA-2003CNC
HYDROSTATIC BEARINGS
The wheel spindle is supported by 20kg/cm2 high pressure oil at axial and radial direction.
WITHOUT THE NEED TO REPLACE PARTS
This design eliminates contact-friction between metals without the need to replace parts. Outstanding features of the spindle include high rigidity, high accuracy, long service life, minimum vibration and low heat growth, etc.
Specification
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 |