Product Description
Keep your 70mm cloth cutting machine blade sharp and cutting efficiently with this B7 Grinding Wheel Stone, designed as a replacement abrasive stone for compatible blade-sharpening assemblies.
The B7 grinding stone is used with Lejiang YJ-70, YJ-70A, Messer 70mm and Taking TK-70 series mini electric cloth cutting machines, as well as compatible 70mm round and octagonal blade cutters.
A properly maintained grinding stone helps restore the cutting edge of a dull blade, supporting smoother fabric cutting and reducing problems such as fabric pulling, frayed edges and cutting resistance.
Pack Quantity: 1 Piece
Part Number: B7 Grinding Stone
Compatibility Note: Please compare the grinding wheel diameter, center hole and mounting arrangement with your existing B7 stone before ordering. A 70mm blade diameter alone does not guarantee compatibility.
KEY FEATURES
- Genuine-style B7 grinding wheel stone replacement
- Designed for compatible 70mm cloth cutting machines
- Compatible with Lejiang YJ-70 and YJ-70A
- Compatible with Messer 70mm and Taking TK-70 series
- Suitable for compatible round and octagonal blade cutters
- Abrasive grinding surface for blade sharpening
- Helps maintain a sharp and efficient cutting edge
- Uniform grinding surface for consistent sharpening
- Designed for replacement of worn grinding stones
- Pack Quantity: 1 Piece
COMPATIBLE MACHINES
| Machine | Compatibility |
|---|---|
| Lejiang YJ-70 | Yes |
| Lejiang YJ-70A | Yes |
| Messer 70mm | Yes |
| Taking TK-70 | Yes |
| Standard compatible 70mm cutters | Verify fit |
Lejiang YJ-70 / YJ-70A
The B7 grinding stone is designed for compatible Lejiang YJ-70 and YJ-70A 70mm round and octagonal blade cloth cutting machines.
It replaces a worn sharpening stone inside the machine’s grinder assembly and helps maintain the cutting blade during regular operation.
Messer 70mm
This grinding wheel stone is also compatible with specified Messer 70mm mini electric cloth cutting machines, provided the grinder assembly uses the matching B7 stone dimensions.
Taking TK-70
The B7 stone is also suitable for the specified Taking TK-70 series cloth cutting machines.
For replacement, compare the existing stone’s diameter, center hole and mounting arrangement.
WHAT DOES THE B7 GRINDING STONE DO?
The grinding stone is part of the machine’s built-in blade sharpening system.
During sharpening, the abrasive surface contacts the rotating blade and removes a small amount of material from the cutting edge. This helps restore blade sharpness and maintain cutting performance.
A worn grinding stone may not contact the blade correctly or may produce inconsistent sharpening.
BENEFITS OF A GOOD GRINDING STONE
A properly functioning B7 grinding stone can help:
- Maintain blade sharpness
- Improve cutting efficiency
- Reduce fabric pulling
- Reduce frayed fabric edges
- Support smoother multi-layer cutting
- Reduce resistance during cutting
- Maintain consistent blade performance
- Extend useful blade service life through regular maintenance
The grinding stone does not replace a damaged blade. If the blade has chips, cracks or excessive wear, replacement may be required.
WHEN SHOULD YOU REPLACE THE B7 GRINDING STONE?
Consider replacing the grinding stone when:
- The abrasive surface is excessively worn
- The stone has become too small to contact the blade properly
- Sharpening has become inconsistent
- The stone is cracked or damaged
- The blade no longer sharpens effectively
- The grinder produces abnormal vibration
- The stone surface has become excessively glazed
Always inspect the grinder assembly and blade when replacing the stone.
HOW TO REPLACE THE B7 GRINDING STONE
- Disconnect the cloth cutting machine from the power supply.
- Secure the machine on a stable work surface.
- Access the blade sharpening/grinder assembly.
- Remove the worn B7 grinding stone according to the machine’s service arrangement.
- Compare the replacement stone with the original.
- Check the diameter and center hole.
- Install the new grinding stone correctly.
- Secure the retaining hardware.
- Check that the stone rotates freely.
- Confirm that it contacts the blade correctly when the sharpening mechanism is engaged.
- Test the machine carefully before normal operation.
Do not force an incorrectly sized grinding stone into the grinder assembly.
FAQ
What is a B7 grinding wheel stone?
The B7 grinding wheel stone is a replacement abrasive stone used in the blade-sharpening assembly of compatible 70mm electric cloth cutting machines.
Which machines use the B7 grinding stone?
This B7 stone is specified for Lejiang YJ-70, YJ-70A, Messer 70mm and Taking TK-70 machines with the matching grinder configuration.
Is this compatible with Lejiang YJ-70?
Yes. It is compatible with the Lejiang YJ-70 70mm cloth cutting machine.
Is this compatible with Lejiang YJ-70A?
Yes. The B7 grinding stone is compatible with the Lejiang YJ-70A configuration.
Does it fit Taking TK-70?
Yes, for the specified Taking TK-70 configuration. Compare the original grinding stone dimensions before ordering.
Does it fit Messer 70mm?
Yes, for the specified Messer 70mm configuration using the matching B7 grinding stone.
Does a 70mm blade automatically mean this stone will fit?
No. The blade diameter does not alone determine grinding-stone compatibility. Check the stone diameter, center hole and grinder mounting arrangement.
How often should the grinding stone be replaced?
Replacement frequency depends on machine usage, fabric type and sharpening frequency. Replace the stone when it becomes excessively worn, damaged or unable to sharpen the blade correctly.
Can the grinding stone sharpen an octagonal blade?
Yes. It is designed for compatible 70mm machines using octagonal or round cutting blades.
How many grinding stones are included?
The package contains 1 B7 grinding wheel stone.
