Esmeriladoras Cilíndricas y Rectificadoras Cilíndricas sin Centros / Amoladoras sin Puntas

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Esmeriladoras Cilíndricas Hidráulicas - serie UCG Esmeriladoras Cilíndricas Hidráulicas - serie HUCG Rectificadora Cilíndrica sin Centros / Amoladora sin Puntas

Hydraulic Cylindrical Grinding Machines - UCG Series

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- Machine Bed: Made of close grained Cast Iron, well ribbed.
- Workhead: Spindle made of nickel chrome steel EN-24 hardened and ground. Runs on Gun metal bush bearings
- Wheelhead: Spindle made of nickel chrome steel EN-24 hardened and ground. Runs on White Metal adjustable type bush bearings
- Hydraulic System: This consists of Vickers or Yuken Pump, oil tank, piping, etc. all conveniently housed in the base. Hydraulic cylinder is made of steel and is honed.
- Internal Grinding Attachment: The spindle of the internal grinding attachment which is suitable for grinding cylindrical and tapered holes is made of EN-36 and is ground. It runs in fiber cage bearings. Drive to the spindle is by an independent motor. The hinged type Internal Grinding Attachment is conveniently located on the wheelhead, so it could be swung down to position.

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Tailstock: The spring loaded tailstock travels smoothly along the length of the table ring up to the workhead. Clamping is by means of a T-nut
- Coolant: Generous coolant supply is provided with an electric pump fitted on a separate tank having a capacity of 15 gallons

Specifications:

Model  UCG-200  UCG-254L  UCG-254H
Max. diameter of swing (mm)  200  254  254
Max. distance between centres (mm)  450 / 600  500 / 625 / 750  1000 / 1250 / 1500
Height of centre (mm)  100  127  127
Table speed infinitely variable min. / max. (mm/min)  400 / 5000  400 / 5000  400 / 4000
Wheelhead and wheel feed
Grinding wheel (OD x Width x Bore) (mm)  300x25x75  350x40x127  350x40x127
Automatic cross feed of wheel at each left hand reversal of table (travel in two steps) (mm)  0.01 / 0.02  0.01 / 0.02  0.01 / 0.02
Speed of wheel spindle (rpm)  1750  1600 - 2090  1600 - 2090
Workhead
Speed of workhead (rpm)  80 - 150 - 270  60 - 120 - 212 - 380  60 - 120 - 212 - 380
Morse taper in workhead spindle  MT-3  MT-4  MT-4
Swivel of workhead  90 degrees  90 degrees  90 degrees
Morse taper in tailstock  MT-2  MT-3  MT-3
Internal Grinding
Spindle diameter (mm)  60  60  60
Max quill length (rpm) 70 70 70
Max. quill diameter (mm): 18 18 18
Min. / Max. diameter of hole grinding (mm): 16 / 60 16 / 60 16 / 60
Min. / Max. diameter of grinding wheel (mm): 15 / 40 15 / 40 15 / 40
Spindle quill speed (rpm): 18000 18000 18000
Electric Motors (HP)
Wheelhead motor  2.0  5.0  5.0
Workhead motor  0.5  1.0  1.0
Internal Grinding Attachment motor  1.0  1.0  1.0
Hydraulic Pump motor  1.0  1.0  1.0
Coolant Pump motor  0.15  0.15  0.15

 

Other Specifications:

Model  Max. Swivel of Table (degrees)  Nett Weight  Dimensions
UCG-200 / 450  -2 to +7  1250  2.0 x 1.4 x 1.6
UCG-200 / 600  -2 to +6  1500  2.0 x 1.4 x 1.6
UCG-254L / 500  -2 to +7  2000  2.0 x 1.4 x 1.6
UCG-254L / 625  -2 to +6  2250  2.0 x 1.4 x 1.6
UCG-254L / 750  -2 to +6  2500  2.6 x 1.4 x 1.7
UCG-254H / 1000  -2 to +6  3000  3.1 x 1.4 x 1.7
UCG-254H / 1250  -2 to +5  3100  3.2 x 1.4 x 1.7
UCG-254H / 1500  -2 to +5  3225  3.6 x 1.4 x 1.7
Standard Accessories: 
Common with all models: Motors with starter and belts, coolant pump with tank, grinding wheel, diamond dresser, set of service tools
with UCG-200 series models: Plain dead centre MT-2 (Threaded), plain dead centre MT-3
with UCG-254 series models: Plain dead centre MT-3 (Threaded), plain dead centre MT-4
Optional Accessories:
Common with all models: Internal Grinding Attachment, wheel balancing arbour, wheel balancing stand, wheel angle dressing attachment, additional wheel flange, two-point steady rest, three-point steady rest, true chuck flange
with UCG-200 series models: True chuck 110 mm, revolving centre MT-2, carbide dead centre MT-2, carbide dead centre MT-3
with UCG-254 series models: True chuck 135 mm, revolving centre MT-3, carbide dead centre MT-3, carbide dead centre MT-4, hydraulic tailstock

Hydraulic Cylindrical Grinding Machines - HUCG Series

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- Machine Bed: Made of high grade Cast Iron. Ribbed Box structure design, high quality stress relieved castings. Three point setup.
- Workhead & Wheelhead: Running on hydro-dynamic multi-point bearings. Cartridge Type. The wheel slide can be swiveled through +/- 45 degrees.
- Infeed System: Infeed is operated by precision ground cam. The movement of infeed slide (wheel slide) is based on hardened, ground and preloaded roller guideways, which guarantee stick-slip free movement and fine repetitive accuracy of +/- 1  micron. Plunge grinding at any desired approach angle up to 45 degrees can be done. Single lever operates the complete grinding cycle. According to the work piece requirement, the following grinding cycles can be selected: 1. Plunge; 2. Traverse with Infeed on L.H.S.; 3. Traverse with Infeed on R.H.S.; 4. Traverse with Infeed on L.H.S. and R.H.S.
- Automatic Grinding Cycle: It has a Rapid approach - Coarse Feed - Fine Feed - Sparkout and Rapid retraction of the wheelhead and the infeed handwheel to the preselected position. The cycle also controls Start / Stop of the workhead motor, coolant motor and table reciprocation. In case of a long job, the termination of the grinding cycle is selectable either at Left, Right or at any position of the reciprocating table. While internal grinding cycle is running, wheel slide always remains in retracted position. The Infeed and Fine feed as well as the feed rate of Coarse and Fine feed are selectable. There is an optional arrangement to equip the cycle with an in-process gauging device for direct measurement during grinding.
- Tailstock: Its upper part moves on hardened, ground and preloaded roller guideways. Facilities such as Fine taper setting of +/- 20 microns and hydraulic tailstock actuation are optionally provided
- Hydraulic / Electrical System: The hydraulic powerpack is equipped with solenoid valve, hydraulic pump, motor, etc., which is located outside the machine to avoid vibration & thermal distortion. The electric controls cabinet is also housed outside the machine for easy maintenance.
- Swivel Table: Table is arranged to swivel for taper grinding. Graduations at the right-hand end indicate taper on diameter per millimeters and the included angle in degrees. The graduated scale permits initial setting and a dial indicator can be attached to enable fine corrections to be applied by screw adjustment.
- Internal Grinding Attachment: The hinged type Internal Grinding Attachment with its independent motor is conveniently located on the wheelhead. It has a fast grinding action and can be quickly swung into a grinding position. The work piece can be externally and internally ground in one setting. Taper hole can be ground either by swiveling the workhead or the table. During the internal grinding operation, safety interlocking system provided avoids sudden retraction of wheelhead. The internal grinding spindles are run on precision fiber cage bearings. A wide selection of spindles is available depending on the requirement of the work piece.

Specifications:
Model  HUCG-260  HUCG-350
Max. diameter of swing (mm)  260  350
Max. distance between centres (mm)   500 / 800 / 1000 / 1200  500 / 800 / 1000 / 1200
Height of centre (mm)  130  175
Table speed infinitely variable min. / max. (mm/min)  100 / 5000  100 / 5000
Wheelhead and wheel feed
Grinding wheel (OD x Width x Bore) (mm)  400x50x127  400x50x127
Speed of wheel spindle (rpm)  1500 / 1740 / 2020 / 2350  1500 / 1740 / 2020 / 2350
Workhead
Speed of workhead (rpm)  56 to 630 (in 8 steps)  56 to 630 (in 8 steps)
Morse taper in workhead spindle  MT-5  MT-5
Morse taper in tailstock  MT-3  MT-3
Infeed System
Rapid approach (mm)  40  40
Infeed with handwheel (mm)  20  20
Min. incremental on diameter (mm)  0.001  0.001
Swivel range  +/- 45 degrees  +/- 45 degrees
Max. plunge depth on diameter (mm)  1.7  1.7
Coarse infeed range on dia. (mm/min)  0.015 - 6  0.015 - 6
Fine infeed range on dia. (mm/min)  0.015 - 3  0.015 - 3
Spark Off time (sec.)  0 - 60  0 - 60
Internal Grinding
Spindle diameter (mm)  60  60
Spindle speed (rpm)  18000  18000
Accuracy - Roundness on Live Spindle
with standard equipment 0.002 0.002
with special optional equipment 0.001 / 0.0005 0.001 / 0.0005
Electric Motors (HP)
Wheelhead motor  5.0  5.0
Workhead motor  0.37  0.37
Internal Grinding Attachment motor  1.0  1.0
Hydraulic Pump motor  2.0  2.0
Coolant Pump motor  0.15  0.15

 

Other Specifications:

Model  Max. Swivel of Table (degrees)  Nett Weight
HUCG-260 / 500 & HUCG-350 / 500  -3 to +12  2800
HUCG-260 / 800 & HUCG-350 / 800  -3 to +9  3500
HUCG-260 / 1000 & HUCG-350 / 1000  -2 to +8  3900
HUCG-260 / 1200 & HUCG-350 / 1200  -1 to +7  4200

Internal Grinding Attachment

Swivel Table

Tailstock
Standard Accessories: Common with all models: Motors with starter and belts, coolant pump with tank, grinding wheel, diamond dresser, set of service tools, Carbide dead centre MT-5, carbide dead centre MT-3, table mounted swivel dresser, wheel dressing attachment in tailstock, wheel balancing mandrel, live spindle drawbar with adaptor, two wheel adaptors for internal grinding spindle
Optional Accessories: Wheel balancing arbour, wheel balancing stand, two-point steady rest, three-point steady rest, precision 3-jaw chuck with adaptor and flange, precision 4-jaw chuck with adaptor and flange, wheel angle dressing attachment, radius dressing attachment, hydraulic side dressing attachment, machine lamp, magnetic filter with standard coolant tank, paper cum magnetic filter with special coolant tank, in-process gauging equipment, variable speed for workhead, variable speed for wheelhead

Centreless Grinding Machine

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- Straight parts, parts with shoulders, tapered parts, parts of various shapes, etc. can be ground easily by using suitable grinding wheels
- Machine can grind steel, hardened and unhardened brass, copper, aluminium, etc.
- BED: The bed of the machine is box-shaped seasoned casting.
- GRINDING WHEELHEAD: The grinding wheel spindle is made of hardened and ground alloy steel, it runs on anti-friction white metal adjustable type bush bearings. The axial thrust is taken up by two direction axial thrust collar which is hardened and ground. Bearings are automatically lubricated by means of a splash system
- REGULATING WHEELHEAD: It travels on a movable dovetailed scrapped slide and can be tilted from 0 to 3 degrees to obtain different feed rates for workpiece. Regulating wheel spindle is made of hardened and ground alloy steel. It runs in adjustable split bronze bearings lubricated by plunger pump.
- WHEEL TRUING DEVICE: The grinding wheel and regulating wheel are equipped with separate truing devices, which are hydraulically operated, so that evenly smooth true wheels can be obtained for efficient cutting, uniform accuracy and better surface finish on the workpiece. The grinding wheel truing device is provided with a swiveling device arrangement. By fixing templates on grinding wheel truing device profiles can be obtained. The regulating wheel truing device is also provided with a swiveling arrangement. The truing units travel on a dovetailed slide, the movement of the unit can be controlled by a control valve knob.
Specifications
Model  CLG-100
Max. / min. diameter of job  100 / 3 mm
Max. width of job for plunge grinding  100 mm
Grinding Wheelhead Stock
Max. diameter x width x bore  350 x 100 x 127 mm
Min. useful diameter (wheel)  250 mm
Grinding wheel speed  1900 rpm
Motor  7.5 HP
Regulating Wheelhead Stock
Diameter x width x bore  225 x 100 x 75 mm
Min. useful diameter (wheel)  130 mm
Regulating wheel speed  11 - 350 rpm (6 speeds)
Swiveling of regulating wheel spindle  0 to 3 degrees
Motor  1.0 HP
General
Throughfeed Grinding  220 mm
Infeed Grinding  100 mm
Hydraulic Motor  1 HP
Coolant pump  0.15 HP
Net weight  1400 kgs.
Standard Accessories: Grinding wheel, regulating wheel, two truing devices, single ended work rest blade, electric motors, coolant pump with tank, electric control panel, allen keys, spanners, set of wheel pullers and ‘V’ belts
Optional Accessories: Wheel balancing stand, wheel balancing arbor, additional wheel flanges for emery grinding wheel and regulating wheel, special work rest blades

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