Surface Grinding Machines M7232/M7240
The M7232 and M7240 grind flat faces using the periphery of the wheel, on workpieces of steel, castings, non-ferrous metals, glass and ceramics. Three configurations cover different part lengths: the M7232 with a 320x1000mm table, the M7232x16 with 320x1600mm, and the M7240x20 with 400x2000mm. Maximum workpiece height ...
What This Machine Does
The M7232 and M7240 grind flat faces using the periphery of the wheel, on workpieces of steel, castings, non-ferrous metals, glass and ceramics. Three configurations cover different part lengths: the M7232 with a 320x1000mm table, the M7232x16 with 320x1600mm, and the M7240x20 with 400x2000mm. Maximum workpiece height is 400mm across all three, and allowable workpiece weight including the electromagnetic chuck runs from 624kg to 1248kg, so these machines take heavy fixtures and castings rather than small toolroom parts. Table longitudinal travel is hydraulic, from 200mm up to 1100mm, 1700mm or 2100mm depending on model, and wheel-head cross travel is manual or hydraulic. The wheel is Φ150x50xΦ32 driven by a 4kW motor at 2890 r/min. Equal thickness of the workpiece is held to 0.015mm over 1000mm, which is the figure to check your drawing against. Total electrical capacity is 9 to 10 kVA. These machines suit mechanical processing workshops and machine repair workshops.
Why Buyers Choose This Machine
- Equal thickness of the workpiece held to 0.015mm over 1000mm so you can check the machine against your drawing before ordering
- Three table sizes from 320x1000mm to 400x2000mm so table length is matched to the part rather than oversized
- Allowable workpiece weight up to 1248kg including the electromagnetic chuck takes heavy castings and fixtures
- Hydraulic table longitudinal travel keeps feed even along strokes up to 2100mm
- Wheel-head cross travel available manual or hydraulic to suit one-off and batch work
- 400mm maximum workpiece height accommodates tall fixtures without special setup
- Total electrical capacity of only 9 to 10 kVA keeps supply requirements modest for the machine size
Where Surface Grinding Machines M7232 Earns Its Place
Problems It Solves
- A long part ground in two setups shows a step where the setups meet
- Small table grinders cannot carry a heavy casting with its chuck
- Uneven table feed along a long stroke leaves witness marks down the part
- Buying a machine without a stated thickness tolerance leaves you guessing whether it holds your drawing
- Manual-only cross feed is slow on a wide part and hydraulic-only is clumsy for a single pass
- Glass and ceramic parts cannot be finished with a cutting tool
Who It Is For
- Mechanical processing workshops handling large flat components
- Machine repair workshops regrinding worn bed and slide faces
- Die and mould shops flattening heavy plate
- Foundries and machining shops finishing cast housings
- Distributors supplying large table surface grinders
Application Scenarios
- Grinding long machine bases and slide faces on the M7240x20 in a single setup
- Flattening heavy cast housings up to 1248kg on the chuck
- Finishing die and mould plates after heat treatment
- Machine repair work restoring worn flat reference surfaces
- Grinding glass and ceramic components alongside metal work
- Batch flat grinding in a mechanical processing workshop
Technical Detail
Technical Features
- Peripheral wheel surface grinding
- Hydraulic table longitudinal travel
- Wheel-head cross travel manual or hydraulic
- Electromagnetic chuck on the worktable
- Φ150x50xΦ32 grinding wheel
- 4kW grinding wheel motor at 2890 r/min
- Equal thickness of workpiece 1000:0.015mm
- Total electrical equipment capacity 9 to 10 kVA
Specifications
| Machine type | Horizontal spindle surface grinding machine |
|---|---|
| Models | M7232 / M7232x16 / M7240x20 |
| Size of working table (W x L) | 320x1000mm / 320x1600mm / 400x2000mm |
| Max size of workpiece (W x L x H) | 320x1000x400mm / 320x1600x400mm / 400x2000x400mm |
| Table longitudinal travel (hydraulic) | 200-1100mm / 200-1700mm / 200-2100mm |
| Max allowable workpiece weight including electromagnetic chuck | 624kg / 1000kg / 1248kg |
| Max travel of wheel-head cross (manual or hydraulic) | 550mm / 630mm |
| Wheel size (O.D x W x I.D) | Φ150x50xΦ32 |
| Grinding wheel motor | 4 kW at 2890 r/min |
| Electrical equipment total capacity | 9 kVA / 9 kVA / 10 kVA |
| Equal thickness of the workpiece | 1000:0.015mm |
| Workpiece materials | Steel, castings, non-ferrous metals, glass, ceramics |
Figures above are taken from the product information we hold. Send us your application and we will confirm the exact specification for the model quoted.
How It Is Built and What Can Be Changed
Operations Performed
- Surface grinding
- Flat face grinding
- Parallel face grinding
Materials Handled
- Steel
- Castings
- Non-ferrous metals
- Glass
- Ceramics
Quality Control
- Equal thickness verified against the 1000:0.015mm figure on a test workpiece
- Table flatness and parallelism checked along the full longitudinal travel
- Hydraulic traverse tested for even feed at both ends of the stroke
- Electromagnetic chuck holding force checked with the machine running
- Wheel spindle run-out and 2890 r/min running speed confirmed before packing
Customisation Options
- Model chosen from M7232 M7232x16 or M7240x20 by part length and weight
- Supply voltage phase and frequency built for your market
- Wheel-head cross travel specified as manual or hydraulic
- Electromagnetic chuck sized to the workpieces you hold
- Grinding wheel specification chosen for your material
- Manual and control markings prepared in your working language
How It Compares With the Alternatives
| M7120 M7130 and M7140 surface grinders | Those are the compact machines for a general workshop; the M7232 and M7240 carry far heavier parts and run table strokes up to 2100mm |
|---|---|
| M7150 to M7180 series | The M71 large series offers a hydrodynamic-hydrostatic spindle option and goes heavier still; the M7232 and M7240 come with a published thickness figure of 1000:0.015mm that is easy to check against a drawing |
| Grinding a long part in two setups | A 2000mm table on the M7240x20 takes the part in one setup so there is no step to blend out afterwards |
| Face milling a large casting | Milling is faster on stock removal but cannot hold equal thickness to 0.015mm over a metre or finish a hardened face |
Running the Machine
Step 1
Clean the electromagnetic chuck and seat the part with no swarf trapped under it
Step 2
Check the part weight including chuck sits inside the allowable figure for your model
Step 3
Let the machine reach working temperature before cutting to size
Step 4
Dress the wheel before starting the component
Step 5
Set hydraulic longitudinal travel to clear the part at both ends of the stroke
Step 6
Take light passes with coolant and check thickness across the part on the first component
Step 7
Spark out on the final pass and measure the part off the machine
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Questions About Surface Grinding Machines M7232
What thickness tolerance will it hold?
Equal thickness of the workpiece is 1000:0.015mm, that is 0.015mm over a metre. Check that against your drawing and send it to us if you need confirmation for your specific part.
How heavy a part can we put on the table?
624kg on the M7232, 1000kg on the M7232x16 and 1248kg on the M7240x20. Those figures include the electromagnetic chuck, so count the chuck when you check your part.
Which model suits a 1.8 metre part?
The M7240x20 with its 400x2000mm table and 200 to 2100mm longitudinal travel. The M7232x16 tops out at 1600mm table length.
What grinding wheel does it take?
Φ150x50xΦ32, driven by a 4kW motor at 2890 r/min. Specification of the abrasive is chosen against your material, so tell us what you grind.
What electrical supply does it need?
Total electrical equipment capacity is 9 kVA on the M7232 and M7232x16 and 10 kVA on the M7240x20. Tell us your voltage phase and frequency and the machine is built for it.
Is the cross feed manual or hydraulic?
Either. Maximum wheel-head cross travel is 550mm or 630mm depending on model. Tell us how you work and we will specify it.
What are your trade and payment terms?
FOB CFR and CIF. Payment is 30 percent by T/T on order and 70 percent before shipment, or an irrevocable L/C at sight.
Request a Quote on the Surface Grinding Machines M7232
Send us the work you need it to do, the voltage on your site and the port you ship to. We will come back with the model, the tooling and the lead time.