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Home > Cylindrical Grinding Machines > China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
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China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine
China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine

China Supplier External Grinding and Internal Grinding Cylindrical Grinder Universal Cylindrical Grinding Machine

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

Product Description

ℹ️ Basic Information
Model NO.
M1420
Type
Universal Cylindrical Grinder
Processing Object
Metal
Abrasives
Grinding Wheel
Controlling Mode
Artificial
Automatic Grade
Semiautomatic
Precision
High Precision
Condition
New
External Grinding Diameters
8~200mm
Internal Grinding Diameters
13~100mm
Center Height
135mm
Machine Weight
2500kgs
📋 Main Features
✔Table can be tilted for conical grinding operations and scale allows adjustment to desired position.
✔Spindle stock can be swivelled 180 degree for inside grinding operations.
✔Main spindle is mounted hydro-dynamically - oil film prevents contact between spindle and bearing.
✔Longitudinal table guide and grinding spindle stock cross guide feature V- and flat guiding each.
✔Strong reinforcements and generously designed walls make the machine base resistant to temperature fluctuations and deformations.
✔Oil film between spindle and bearing reduces the vibrations to a minimum for top results and high accuracy.
✔Stepless feed adjustment with selective programmable stop at end of each table movement.
✔Precisely adjusted spindle head and solid grinding spindle stock to achieve various grinding results.
✔Precisely polished and manually finished guideways in x- and y-axis.
✔Hydraulic or manual resetting of grinding spindle stock.
✔Longitudinal movement of table is either manually by handwheel or automatically by hydraulic feed.
✔Grinding spindle features bearings on both sides and adjustable sliding flat grids.
📊 Technical Specifications
Description Unit M1420x500 M1420x800
External grinding diametersmmφ8~200φ8~200
Internal grinding diametersmmφ13~100φ13~100
Center heightmm135135
Headstock spindle rotation speedr/min50HZ:25~380 stepless
Max. worktable traversemm650950
Hydraulic travel speedm/min0.1~40.1~4
Max. workpiece weightkg5050
Grinding length External/Internalmm500/125800/125
Swivel range of worktable°-5~+9°-3~+7°
Max. wheel peripheral speedm/s3838
Total motor powerkw5.6255.625
Machine overall dimensionmm2200x1600x17003100x1600x1700
Machine weightkg25003000
🛠️ Standard & Optional Accessories
Standard Accessories:
  • Coolant tank (1 set)
  • Grinding wheel dresser (1 set)
  • Wheel hub (2 sets)
  • Wheel balancing mandrel (1 set)
  • Internal grinding tool (1 set)
  • 3-claw chuck (1 set)
  • Open-type steady-rest (1 set)
  • Driving dog (1 set)
  • Carbide-tipped center (2 pcs)
Optional Accessories:
  • 2-Axis Digital readout
  • Wheel balance stand
  • Radius dresser
  • Wheel endface dresser
  • Close-type steady rest
📷 Detailed Photos
Cylindrical Grinder Overall View
Grinding Head Detail
Worktable Setup
Control System
Internal Grinding Device
Internal Grinding Spindle
Machine Base Structure
Coolant System
Precision Components
Final Assembly
📦 Shipping & Terms
Delivery time:   About 70 days after receiving your deposit.
Payment terms:   30% T/T as deposit, 70% T/T before shipment; or 100% T/T before production.
Warranty:   12 months since machine on board.
Packaging:   Fully closed ply wooden case for safety. No need for fumigation.
❓ Frequently Asked Questions
Q: What types of grinding operations can the M1420 perform?
A: It is a universal cylindrical grinder designed for both external and internal grinding of metal workpieces.
Q: What is the maximum diameter the machine can grind externally?
A: The machine supports external grinding diameters ranging from 8mm up to 200mm.
Q: Can the worktable be adjusted for tapered parts?
A: Yes, the table can be tilted (-5 to +9 degrees for the 500mm model) for conical grinding operations with a scale for precision adjustment.
Q: How does the spindle ensure high accuracy?
A: The main spindle is hydro-dynamically mounted. The resulting oil film prevents direct contact between the spindle and bearing, minimizing vibrations and wear.
Q: What is the maximum workpiece weight allowed?
A: The maximum workpiece weight for the M1420 series is 50 kg.
Q: Is the internal grinding tool included in the standard package?
A: Yes, the internal grinding tool, along with a 3-claw chuck and quill shafts, are part of the standard accessories.

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