Used Ichikawa RCB-402 Rotary Surface Grinder from Japan
Product Description
This used Ichikawa RCB-402 rotary surface grinder from Japan is designed for high-precision flat grinding of large round and special-shaped parts. The machine features a hydrostatic rotary table and hydrostatic front/back feed guideway, offering stable movement, strong rigidity, and excellent grinding accuracy.
On-site test data shows a φ600 mm workpiece measured at 12 points with only about 2 μm variation, making this pre-owned Japanese grinder a strong choice for precision machining workshops looking for accuracy at a lower investment cost.
Technical Specifications
| Item | Specification |
|---|---|
| Machine Type | Horizontal Spindle Rotary Surface Grinder |
| Brand | Ichikawa / Ichikawa Seisakusho |
| Model | RCB-402 |
| Origin | Japan |
| Machine Condition | Used / Pre-Owned |
| Delivery Document Date | 2007 |
| Table / Chuck Type | Rotary magnetic chuck |
| Magnetic Chuck Diameter | φ1016 mm |
| Splash Cover Swing | φ1100 mm |
| Table Rotation Speed | 10–40 min⁻¹, inverter controlled |
| Table Rotation by Foot Switch | Approx. 5 min⁻¹ |
| Grinding Wheel Size | φ510 × 50 × φ203.2 mm |
| Grinding Wheel Spindle Speed | 700–1750 min⁻¹, inverter controlled |
| Wheel Peripheral Speed | 1980 m/min |
| Wheel Head Vertical Travel | 570 mm |
| Vertical Rapid Feed Speed | 300 mm/min |
| Vertical Manual Feed, 1 Division | 0.001 mm |
| Vertical Manual Feed, 1 Revolution | 0.1 mm |
| Manual Feed Ratio | ×1, ×10 |
| Automatic Downfeed Range | 0.001–0.099 mm/turn |
| Wheel Head Front/Back Travel | 650 mm |
| Front/Back Feed Speed | 150–1500 mm/min |
| Front/Back Manual Feed, 1 Division | 0.001 mm |
| Front/Back Manual Feed, 1 Revolution | 0.1 mm |
| Power Supply | AC 3-phase 200V, 60Hz |
| Operation Power | AC single-phase 100V / DC 24V |
| Electrical Capacity | 37 kVA |
| Machine Height | 2880 mm |
| Required Floor Space | 3840 × 3770 mm |
| Maximum Floor Space | 4230 × 3770 mm |
| Machine Weight | Approx. 13,200 kg |
| Main Electrical Components | Mitsubishi / FANUC components |
| Standard Accessories | Magnetic chuck, magnetic chuck controller, grinding wheel flange, balancing arbor, foot switch, standard tools and toolbox |
| Special Features | Wheel spindle variable speed, rotary table speed display, wheel spindle lubrication/cooling system, digital scale automatic infeed device, rough/fine grinding control |
Accuracy & Inspection Highlight
The machine was tested on a φ600 mm workpiece. Parallelism and flatness were measured at 12 points, with readings around 39.959–39.961 mm. The measured variation is approximately 2 μm, showing strong grinding stability for precision flat surface finishing.
Applications
This used Japan Ichikawa RCB-402 rotary surface grinder is suitable for precision machining industries that require stable flatness, high parallelism, and reliable surface finishing.
It can be used for:
| Industry | Typical Applications |
|---|---|
| Precision Machinery | Large flat parts, round plates, precision machine components |
| Mold & Die Manufacturing | Mold plates, die bases, precision inserts |
| Automotive Parts | Disc-shaped components, transmission parts, precision bearing-related parts |
| Aerospace Components | High-accuracy structural parts and flat reference surfaces |
| Medical Equipment | Surgical instrument parts, precision medical machine components |
| 3C Electronics | Mobile phone, computer, and electronic component tooling |
| General Job Shops | High-precision flat grinding for custom parts |
This machine is especially suitable for workshops that need Japanese grinding machine accuracy, but want to reduce investment compared with buying a new rotary surface grinder.
FAQ
Is this Ichikawa RCB-402 a new or used machine?
This is a used Ichikawa RCB-402 rotary surface grinder originally made in Japan. It is a pre-owned machine, not a new machine.
What is the magnetic chuck size of this used grinder?
The machine is equipped with a φ1016 mm magnetic chuck, suitable for large round parts and precision flat grinding work.
What accuracy was measured during the machine test?
A φ600 mm workpiece was measured at 12 points, with readings around 39.959–39.961 mm. The variation was about 2 μm based on the seller’s test.
What type of parts can this rotary surface grinder process?
It is suitable for mold plates, round workpieces, automotive parts, medical components, precision machinery parts, and electronic tooling components.
Why choose this used Japanese Ichikawa grinder?
It offers Japanese-built rigidity, a hydrostatic rotary table, stable grinding performance, and high precision at a more economical price than purchasing a new rotary surface grinder.
$1076471.00
Brand
Ichikawa
Model
RCB-402
Origin
JP
Processing Time
6523h
Machine Status
- In stock
- Company-owned inventory
- Delivery time: 7 days
Available inspection support
- Machine appearance check
- Control system power-on check
- Spindle and axis movement check
- Grinding area photo check
- Electrical cabinet photo check
- Machine nameplate verification
- Remote video inspection
- Optional third-party inspection
Supplier's customization ability
- Minor customization
- Drawing-based customization
- Sample-based customization
- Full customization