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Products Description
- Crankshaft grinding machine is suitable for grinding cranks of engine crankshaft in automotive, tractor and diesel repair shops, and also can be used for general cylindrical grinding.
- Wheelhead cross rapid feed and table longitudinal movement all are driven by hydraulic.
- The machine tool set a safe interlock, when grinding crankshaft and wheelhead at grinding position, table can longitudinal move by only manual, don't hydraulic driven; when wheelhead at back position, table can longitudinal move by manual and hydrarulic.
- The grinder can realize grinding external cylindrical, table longitudinal feed by hydraulic and feed speed variable; wheelhead manual feed.
- The workpiece is clamped by centers or chucks, driven by the headstock motor, and manually ground.
- Longitudinal movement of table adopts the methods of manual or hydraulic movement.
- Workhead spindle, wheelhead spindle, oil pump, cooling pump are driven by separate motors.
- The worktable and the grinding wheel adopt hydraulic and electric interlocking structure, which can ensure the operation safety regardless of adjustment or grinding due to operational errors.
- The wheelhead is equipped with a reliable protective cover.
Specification
Unit
QM-400
QM-600
QM-660
Max. swing dia. over bed
mm
400
600
660
Max. length of workpiece (chucks)
mm
830
1830
1830
Between centers
mm
1000
2000
2000
Max. grinding dia. of crankshaft journal
mm
130
130
130
Min. grinding dia. of crankshaft journal
mm
30
30
30
Max. crankshaft crank radius
mm
80
110
120
Max. workpiece weight
kg
80
400
500
Grinding wheel diameter
m/s
35
35
35
Wheel peripheral speed
rpm
7.5
15
15
Main motor power
kw
100
100
100
Machine weight
kg
5000
11900
11900
Machine dimensions(LxMxH)
mm
4115x2050x1500
6000x2580x1750
6000x2580x1750
Cylindricity
mm
0.008
0.008
0.008
Roughness(external/end)
um
Ra0.32/Ra0.8
Ra0.32/Ra0.8
Ra0.32/Ra0.8
· Bridge plate
· Grinding wheel
· Steady rest
· Wheel dresser
· Vertical stand
· Horizontal stand
· End dresser
· Measuring device
· Digital readout
· Center device
· Balancing stand
· Polisher
Shipping Timeframes: All orders are processed within 2-5 business days (excluding weekends and holidays). After your order has been processed, the estimated delivery time is before 05 Jan, 2025, depending on customs, Please note that due to high demand, some items may experience longer shipping times, which will be communicated at order confirmation email.
Order Processing Time: Please allow 2-5 business days for us to process your order before it is shipped . Orders placed after 16:00 on Fridays, or during weekends and public holidays, will begin processing on the next business day. Processing times may be extended during peak seasons or sales events.
Manufacturing Time: Some products needs manufacturing time, the manufacturing process will take approximately 10-30 business days depending on the product. This timeframe may vary depending on the complexity of the product and current demand. but this will be communicated with you during order confirmation.
Returns and Exchanges: We offer a 30-day return policy for most items. If you are not completely satisfied with your purchase, you may return it within 30 days of receipt for a refund or exchange. Items must be unused, in their original packaging, and accompanied by proof of purchase. Return shipping costs are the responsibility of the customer, unless the item was damaged or defective upon arrival.
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At Afrimart, we strive to process all orders promptly. Once the payment has been successfully cleared into our account, your order will be processed within 2 to 5 business days. Please note that this processing time excludes weekends and public holidays.
Following the processing of your order, the estimated delivery lead time ranges between 35 to 60 days. However, please be aware that this timeframe is subject to variations due to potential delays in shipping and customs clearance. While we aim to adhere to the original delivery schedule, unforeseen circumstances may occasionally extend the delivery window beyond the anticipated 35 to 60 days.
In the event of high demand or other factors leading to longer shipping times for certain items, we will communicate any expected delays during the initial order confirmation. We appreciate your understanding and patience as we work to ensure your order arrives as swiftly as possible.