7340 horizontal spindle surface grinder with rotary table

MM7340 horizontal spindle surface grinder with rotary table

1‍. ‍Overview of MM7340

     The MM7340 horizontal spindle surface grinder with rotary table is a precision processing equipment used to grind metal materials using a grinding wheel around the periphery. It can process flat surfaces of workpieces with a diameter less than φ400mm that require high flatness and surface roughness. The flatness of the workpiece surface produced by the machine can reach 0.004mm, and the surface roughness Ra value is not greater than 0.16μm. Because the worktable can rotate around a horizontal axis (±10°) angle, it can also grind inner and outer conical surfaces.

    The rotation of the grinding wheel shaft of the machine tool is driven by a built-in AC motor, the rotation of the worktable is driven by an AC frequency conversion motor, and the reciprocating motion of the worktable is realized by hydraulic transmission. The hydraulic system uses a stroke control operating box, and the same-speed reset precision of the worktable movement is within 0.1mm, so it can also meet the requirements for grinding parts with convex and dish-shaped surfaces.

     The machine tool has an automatic feed and zero position automatic stop feed system, which the operator can preselect according to their needs to reduce labor and achieve multi-machine management.

     This machine tool is suitable for grinding and processing parts such as cutting tools, piston rings, friction plates, bearing rings, and disk shears of tool workshops or product workshops in automobile factories, bearing factories, engine factories, cold-rolling steel mills, saw blade industries, and general machinery factories.‍

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 2. Main specifications

Note：11.12.13. grinding wheel dresser is special order.

MG7340/Ⅰ high-precision horizontal spindle surface grinder with rotary table 

1. ‍Overview of MG7340/Ⅰ

       MG7340/Ⅰ Type high-precision horizontal spindle surface grinder with rotary table uses the circumferential surface of a grinding wheel for grinding. It is used for machining two parallel surfaces that require high flatness and smoothness. The flatness of the surface of the machined φ400mm plane is up to 3μ, and the roughness is Ra≤0.08μm. The worktable can also rotate around the horizontal axis (±10°), allowing for grinding of internal and external tapered surfaces.

The hydraulic system uses a stroke control ope‍rating box and a jitter valve to improve the reversing accuracy. The same speed reset accuracy of the worktable movement is within 0.10mm, making it suitable for grinding disk-shaped parts with convex surfaces.

      The static pressure grinding head oil supply system of this machine uses air-cooled heat dissipation to reduce the temperature rise of the oil pool and the thermal deformation of the machine tool, ensuring the precision of the machine tool in cold and hot working conditions.

      The machine tool has an automatic feed and zero position automatic stop feed system, and the operator can pre-select according to needs to reduce labor intensity and achieve multi-machine management.

       This machine tool is suitable for bearing factories, tool and gauge factories, precision instrument factories, etc., for machining precision bearing rings, indexing plates, precision gauges, and more.

 2. Main specifications 

M7340C Horizontal Spindle surface grinder with Rotary Table.

1.     Overview of M7340C

     The M7340C Horizontal Spindle surface grinder with Rotary Table uses the circumferential surface of a grinding wheel to process two surfaces with high parallelism and surface roughness requirements. The worktable of this machine can rotate around a horizontal axis (±10°), making it suitable for grinding internal and external conical surfaces.

    The hydraulic system uses a stroke control operating box, and the same-speed reset accuracy of the worktable movement is within 0.1mm, which can meet the requirements of grinding disc-shaped parts with convex platforms. The machine has an automatic feed and zero-position automatic stop feed system, and the operator can pre-select according to the needs to reduce labor and realize multi-machine management. The grinding head structure adopts a bushing form.

    This machine is suitable for the production workshops and tool machine repair workshops of tool, bearing, automobile, tractor, and general machinery factories, and is used for processing disc-shaped tools, friction plates, bearing rings, piston rings, indexing discs, etc. Grinding internal conical surfaces such as the front angle of hobs is particularly convenient.

2.   Main specifications

Note：15.16.17. grinding wheel dresser is special order.