China Supplier Universal Internal and External Cylindrical Grinding Machine for Sale (M1420/500)

Customization: Available
After-sales Service: One Year
Warranty: One Year

Product Description

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Basic Information

Model NO.M1420/500
TypeExternal Grinding Machine
AbrasivesGrinding Wheel
Controlling ModeElectric / Automatic
Cylindrical Grinder TypeUniversal Cylindrical Grinder
PrecisionHigh Precision
External Grinding Diameters8-200mm
Internal Grinding Diameters13-100mm
Max. Workpiece Weight50kg
Machine Weight3000kgs

Product Features

01 Table can be tilted for conical grinding operations with scale adjustment.
02 Spindle stock swivels 180° for internal grinding operations.
03 Hydro-dynamic main spindle mounting prevents contact via oil film.
04 Features V- and flat guiding for longitudinal and cross movements.
05 Temperature-resistant base design prevents deformations.
06 Minimized vibrations for high accuracy results.
07 Stepless feed adjustment with programmable stops.
08 Solid grinding spindle stock for diverse grinding operations.
09 Manually finished and polished guideways in x- and y-axis.
10 Choice of hydraulic or manual resetting for spindle stock.
11 Dual mode table movement: manual handwheel or automatic hydraulic.
12 Adjustable sliding flat grids and dual-side bearings.

Technical Specifications

Description Unit M1420X500 M1420X800
Center heightmm135135
Max. worktable traversemm650950
Hydraulic travel speedm/min0.1~40.1~4
Grinding length (Ext/Int)mm500/125800/125
Worktable swivel range°-5~+9°-3~+7°
External wheel sizemmMax.φ400x50xφ203 / Minφ280x50xφ203
Total motor powerkw5.6255.625
Roundness (O.D/I.D)μm1.5 / 2.5
Surface roughnessμmRa0.32 / 0.63
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Detailed Photos

Accessories Configuration

Standard Accessories

  • Grinding wheel & flange
  • 3-jaw chuck (200 mm)
  • Frequency inverter
  • Inside grinding device
  • LED machine light
  • Coolant device & Splash guard
  • Balancing arbor & Mandrel

Optional Accessories

  • 2-axis digital readout (DRO)
  • Balancing stand
  • Close-type steady rest
  • Radius dresser
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Warranty & Support

Quality Guarantee: 12 months from the date the machine is on board.

Service Policy: If a breakdown occurs due to quality issues within the guarantee period, spare parts will be prepared and sent within 5 days free of charge. For issues caused by misoperation, parts are supplied at cost price.

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Frequently Asked Questions

What types of grinding can the M1420 machine perform?
The M1420 is a universal machine designed for both external and internal cylindrical grinding operations. The spindle stock can be swiveled 180° specifically for internal tasks.
How does the hydro-dynamic spindle improve performance?
The hydro-dynamic mounting creates an oil film that prevents direct contact between the spindle and the bearing. This reduces friction, minimizes vibration, and ensures high processing accuracy.
Can this machine handle tapered or conical workpieces?
Yes, the worktable can be tilted, and a scale is provided to allow for precise adjustments for conical grinding operations.
What is the difference between the M1420X500 and M1420X800 models?
The main difference is the maximum worktable traverse and grinding length. The X500 model supports up to 500mm, while the X800 supports up to 800mm in longitudinal movement.
Is the feed adjustment manual or automatic?
It features both. The longitudinal movement of the table can be operated manually via a handwheel or automatically through a hydraulic feed system with stepless adjustment.
What are the standard precision levels for roundness?
The machine achieves high precision with a roundness of 1.5μm for external grinding and 2.5μm for internal grinding.

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