RAB Series
RAB Dual-Axis Trunnion Rotary Table
- Type
- Dual-axis double-arm trunnion
- Models
- 5 (table Ø 200 - 800 mm)
- Positioning Accuracy
- ±5 arc-sec (4 arc-sec repeat, 6 on RAB-400)
- Allowable Load
- 50 - 1,200 kg
The RAB is a dual-axis, double-arm trunnion table built around torque motors, water-cooled on RAB-400 to RAB-800 and convection-cooled on RAB-200: no worm gears, no roller cams, zero backlash. The symmetrical mechanical design carries five table sizes from Ø200 to Ø800 mm at ±5 arc-second positioning accuracy and 4 arc-second repeatability (6 arc-seconds on RAB-400), with absolute encoders closing the loop and pneumatic clamping holding position even through power loss. It upgrades machining centers to 3+2, 4+1 or full 5-axis simultaneous work in one clamping.
Tight on width? RAS is the single-arm sibling: the same torque-motor trunnion concept for space-limited 5-axis designs. View RAS Series →
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±5 arc-sec
Positioning accuracy on every model
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3,900 N·m
Max rotary torque (RAB-800, dual drive)
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±120°
Tilting-axis travel
Applications
- 5-axis simultaneous machining
- Automotive parts machining
- Die and mold machining
- Aircraft parts machining
- Optical and electronic parts
- Medical equipment parts
Models
Tilting torque doubles on the dual-drive sizes (RAB-630: 2,400×2, RAB-800: 3,900×2 N·m), which drive the tilt axis from both arms. RAB-200 cools by convection; every larger size is water cooled.
| Model | Table Ø (mm) | Max torque R / T (N·m) | Max speed R / T (rpm) | Allowable load (kg) | Configure |
|---|---|---|---|---|---|
| RAB-200 | 200 | 81 / 280 | 400 / 150 | 50 | Configure ↗ |
| RAB-400 | 400 | 203 / 640 | 150 / 100 | 200 | Configure ↗ |
| RAB-500 | 500 | 1,100 / 2,400 | 100 / 60 | 600 | Configure ↗ |
| RAB-630 | 630 | 1,100 / 2,400×2 | 100 / 60 | 850 | Configure ↗ |
| RAB-800 | 800 | 3,900 / 3,900×2 | 90 / 60 | 1,200 | Configure ↗ |
Part numbers & options
Drive configuration
- Single One-arm drive — RAB-200 / 400 / 500
- Dual Both-arm drive — RAB-630 / 800: doubled tilt torque
Clamping systems
Holds position through power loss.
- Pneu Pneumatic (6 bar) — Every size, RAB-200 to RAB-800
Cooling
- — Convection — RAB-200
- WC Water cooled — RAB-400 and larger
Downloads
Other Rotary Tables
How buying works
Spec it in the configurator: drawings, 3D CAD, and a quote to follow.
HIWIN series are configured to your application, not bought off the shelf. Start from your loads and speeds if you are still choosing a size.
Rather talk it through? Request a quote from an application engineer.