Used ICHIKAWA RCB-402 Rotary Surface Grinder

Loading carousel...

Product Highlight

This used ICHIKAWA RCB-402 horizontal spindle rotary surface grinder from Japan was manufactured in 2007 according to the original documentation. It is equipped with a Ø1016 mm electromagnetic chuck, Ø510 mm grinding wheel, and 10–40 rpm rotary table speed, with a machine weight of approximately 13.2 tons. It is well suited for precision surface grinding of large discs, ring-shaped components, and other high-accuracy flat workpieces.

Product Description

Used ICHIKAWA RCB-402 rotary surface grinder originally from Japan, equipped with a large Ø1016 mm electromagnetic chuck for precision grinding of large circular, ring-shaped and flat components.

The machine features a 10–40 rpm variable-speed rotary table, Ø510 mm grinding wheel capacity, 570 mm vertical grinding-head travel and 650 mm fore-and-aft travel. A recent seller-provided 12-point measurement on a large workpiece showed readings of approximately 39.959–39.961 mm, representing only about 0.002 mm total variation under the reported test conditions.

Technical Specifications

Specification	ICHIKAWA RCB-402
Machine Type	Horizontal Spindle Rotary Surface Grinder
Brand	ICHIKAWA
Model	RCB-402
Country of Origin	Japan
Condition	Used / Pre-owned
Original Documentation Date	September 27, 2007
Swing Inside Water Guard	Ø1100 mm
Magnetic Chuck Diameter	Ø1016 mm
Magnetic Chuck Separator Pitch	P = 5 + 11 mm
Rotary Table Speed	10–40 rpm
Table Speed Control	Inverter controlled
Jog / Foot Switch Table Speed	Approx. 5 rpm
Grinding Wheel Size	Ø510 × 50 × Ø203.2 mm
Grinding Wheel Spindle Speed	700–1750 rpm
Grinding Wheel Peripheral Speed	1980 m/min
Grinding Head Vertical Travel	570 mm
Vertical Rapid Feed Speed	300 mm/min
Manual Vertical Feed – 1 Division	0.001 mm
Manual Vertical Feed – 1 Revolution	0.1 mm
Manual Feed Multiplier	×1 / ×10
Automatic Infeed Setting Range	0.001–0.099 mm/pass
Grinding Head Fore/Aft Travel	650 mm
Fore/Aft Feed Speed	150–1500 mm/min
Fore/Aft Manual Feed – 1 Division	0.001 mm
Fore/Aft Manual Feed – 1 Revolution	0.1 mm
Electrical Supply	AC 3-phase, 200 V, 60 Hz
Control Power	AC single-phase 100 V, 60 Hz / DC 24 V
Electrical Capacity	37 kVA
Total Motor Capacity	Approx. 28.1 kW
Machine Height	2880 mm
Floor Space	Approx. 3840 × 3770 mm
Maximum Installation Width	Approx. 4230 mm
Machine Weight	Approx. 13,200 kg

Main Equipment / Features Listed in the Original Documentation

Ø1016 mm electromagnetic rotary chuck
Automatic magnetic chuck demagnetization controller
Variable grinding-wheel spindle speed
Grinding-wheel spindle speed display
Rotary table speed display
Grinding-wheel spindle lubrication and cooling system
Double-pump lubrication system
Digital scale / measuring system
Rough and finish grinding feed control
Grinding cycle count control
Grinding wheel flange
Grinding wheel balancing arbor
Foot switch for table inching
Magnetic chuck surface dressing wheel
Leveling bolts and leveling plates
Coolant pump
Magnetic separator

Note: Accessories above are based on the original machine specification. Actual accessories supplied with this used machine should be confirmed before purchase.

Applications & Suitable Workpieces

The used ICHIKAWA RCB-402 rotary surface grinder is particularly suitable for factories that need precision flat grinding on relatively large circular or annular components.

Typical applications include:

Large circular plates requiring precision flat surfaces
Ring-shaped components and large rings
Bearing-related components
Machine tool components
Precision tooling and fixtures
Mold and die components
Automotive precision components
Industrial machinery components
Large metal discs and flanges
High-precision mechanical parts requiring flatness and parallelism control

Its Ø1016 mm magnetic chuck makes the RCB-402 especially attractive for buyers searching for a large-capacity used rotary surface grinder for workpieces that cannot easily be handled by smaller conventional surface grinding machines.

Why Consider This Used ICHIKAWA RCB-402?

For buyers comparing a new rotary surface grinder with a Japanese used machine, the RCB-402 can offer a significantly lower equipment investment while retaining the heavy machine structure and large grinding capacity required for precision production.

Key advantages include Japanese manufacture, a large Ø1016 mm electromagnetic chuck, variable table speed, 570 mm grinding-head vertical travel, 650 mm fore/aft travel and a machine weight of approximately 13.2 tons.

The machine can be particularly suitable for factories expanding grinding capacity, replacing an older rotary grinder, or adding a large-diameter precision grinding process without purchasing a new machine.

FAQ

What type of grinding machine is the ICHIKAWA RCB-402?

The ICHIKAWA RCB-402 is a horizontal spindle rotary surface grinder made in Japan. It uses a rotating electromagnetic chuck and is designed for precision flat grinding of large circular, annular and other suitable ferrous workpieces.

What is the magnetic chuck size on this used RCB-402?

The machine is equipped with a large Ø1016 mm electromagnetic chuck, while the swing inside the water guard is approximately Ø1100 mm. This gives the machine useful capacity for relatively large-diameter workpieces.

Has the accuracy of this used ICHIKAWA grinder been checked?

Yes. According to the seller-provided inspection, a recent 12-point measurement produced readings of approximately 39.959 to 39.961 mm, or about 0.002 mm total variation under the reported test conditions. Buyers may also request further inspection before shipment.

What grinding wheel does the ICHIKAWA RCB-402 use?

According to the original machine specification, the standard grinding wheel size is Ø510 × 50 × Ø203.2 mm. Grinding spindle speed can be adjusted from approximately 700 to 1750 rpm.