Cylindrical grinding machine

Product Category

Slotting Shaping Machine

MQ8260B Series Crankshaft Grinding Machine

Max.work diameter*Max.length: φ580×2000mm

No installation required

Simple operation

Support video teaching

1 Year for machinery warranty

On Stock

Email : contact@antsmachine.com
(your request will be responsed within 1 hour.)

Technical Parameter :

Specifications MQ8260Bx2000
Max.work diameter*Max.length φ580×2000mm
Max. workpiece rotation diameter 580mm
Grinding diameter on center stand Max.10mm, Mini. 30mm
Longitudinal grinding outer diameter Max. 200mm, Mini.30mm
Crankshaft crank radius Max.110mm, Mini. 0mm
Max.workpiece installation length Chuck 1700mm
Between centers 2000mm
Center height 300mm
Headstock top taper Mohs #5
Tailstock top taper Mohs #5
Maximum workpiece weight 120kg
Tailstock sleeve movement 30mm
Grinding wheel dressing and compensation feed Manual
Automatic cycle feed Don’t have
Automatic cut-in feed Don’t have
Possibility of headstock rotation Possible
Possibility of body rotation Impossible
Spindle speed 50Hz 25,50,100 r/min
60Hz 30,60,120 r/min
Three-jaw chuck diameter  MQ8260B 200mm
Movement of the workbench per hand wheel rotation 5mm
Max.longitudinal movement Manual 2000mm
Motorized 2000mm
Max. rotation angle of upper worktable Clockwise 1°30′, counterclockwise 1°30′
Grinding wheel size Maximum 900*20~40*305mm
Wear volume 600×20~40×305mm
Spindle speed 50HZ 760 r/min
60HZ 760 r/min
Max. movement (including rapid movement) 300mm
Max. travel along the screw 200mm
Rapid advance and retreat 100mm
Adjustment between middle seats Forward 70mm
Backward 55mm
Amount of movement per turn of the horizontal feed handwheel 1mm
Amount of movement per grid of the horizontal feed handwheel 0.005mm
Radius of the repairable grinding wheel arc 0-8mm
Main oil circuit adjustment pressure 1-1.3 MPa
Lubricating oil circuit adjustment pressure 0.1-0.3 MPa
Oil pump flow 10 L/min
Note: MQ8260B/H is 11 mL/r
Oil pump pressure 2.5 MPa
Note: MQ8260B/H is 6.3 MPa
Cooling pump type AYB-50GC
Cooling pump flow 50 L/min
Grinding wheel motor power 7.5KW
Head frame motor power 1.5KW
Oil pump motor power 0.55KW
Cooling pump motor power 0.2KW
Work table motor power 0.75KW
Machine size – length*width *height 4650*2100*1600mm
Net weight 7000kg
Packaging size – length*width*height 6000*2250*2000mm
Packaging gross weight 8000kg

Remark: MQ8260B is an upgraded version of MQ8260A. Now there is no A in the MQ8260 series, if you want to know more details, please contact with shanghai ANTISHICNC.


Product description

MQ8260B & MQ8260B/6 series crankshaf are simple in construction, easy in operation and wide in application; suitable for grindingcrankshaft pins and joumals, lt can also be used as cylindrical grinder.The machine is controlled by mechanical, electric and hydraulic means; operated mainly by hand.Left right chucks are crisscross and adjustable.

Workpiece is held by centers or by chucks, driven by workhead motor, and feed by hand for grinding.The worktable consists of upper and lower parts, and upper part having the inclined worktable-surface at 10″( only for MQ8260B/6)Longitudinal worktable travel is realzed by manual-drive or motor-drive, with the motor dfive for jump displacement or adjustmentThe max. wheel, worktable, coolant pump and oll pump are driven by their individual motors.

Worktable and wheelhead have the hydraculic and electric interlocking mechanism, ensuring the safely even if misoperation whetheiin adlustment or in the process of grinding. The wheelhead is equipped with the reliable protective guard, the coolant guard and thebed ways guard is stainless steel. The wheel balancing stand adopt new static wheel balancing stand.

Features

1.The rapid advance and retreat of the grinding wheel frame is completed by hydraulic pressure.

2.The longitudinal movement of the workbench can be manual or mechanical. When it is mechanical, the workbench can only be moved in a jog and moved quickly to facilitate the grinding of the next journal.

3.The workpiece can be clamped by a three-jaw chuck, or the head and tail chucks can be removed and supported by the center.

Main Applications

MQ8260Bx2000 is a crankshaft grinder suitable for grinding crankshaft necks and main journals of engines in automobile, tractor and diesel engine repair shops, and can also be used for grinding general external circles.

Standard Equipment

No Part Name Part No Details Q’ty.
1 Electric cabinet HDQ01-14x8A 1 pcs
2 Coolant Tank HJX71-50 50L/min 1 set
3 Wheel dresser MQ8260-60 1 set
4 Steady rest MQ8260-65 1 set
5 Left chuck MQ8260B-83 1 set
6 Right chuck MQ8260B-84 1 set
7 Balancing weight MQ8260-81A 2 sets
8 Driving dog MQ8260-85-001 1 set
9 Vertical aligning plate MQ8260-85/ 1 1 set
10 Horizontal aligning plate MQ8260-85/2 1 set
11 End-Face dresser MQ8260-61 1 set
12 Leveling wedge HJX81-2 Full sets
13 Measuring bridge-board MQ8260-85-106a 1 pcs
14 Hex. socket spanner HS92-9 55 1 set
15 Wheel extractor HS79-1 M115x2 1 set
16 Wheel hook HS79-2 600 1 pcs
17 Wheel balancing shaft HS79-3 80 1 pcs
18 Hex. nut HJ13-3 B-M36x3LH 1 pcs
19 Flange clamping washer HJ59-1 36×86 1 pcs
20 Center S77-7 Morse#5 2 sets
21 Bolt J21-1 M16x50 1 pcs
22 Driving-rod arm HC91-1 65 1 pcs
23 Driving rod HC91-2 M16x90 1 pcs
24 Spare paint 1 tin
25 Liner MQ8260-85-307 8 pcs
26 V-belt A-965 1 pcs
27 A-940 2 pcs
28 A-1041 3 pcs
29 B-1397 5 pcs
30 Wheel flange MQ8260-86 2 sets
31 Coolant guard MQ8260-76-500 1 pcs
32 Splash guard MQ8260-76-308 1 pcs
33 Square-socket wrench S92-3 17 1 set

 

Optional accessories

No Name Part No Specifications
1 Wheel balancing stand HJX35-1100 Ø900~ Ø1100
2 Suspension-type measuring instrument MQ8240-42
3 Correcting device MQ8260-85/3

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