5TONS L Type Positioner

WUXI ABK 5TONS L-Type Positioner delivers precision positioning for medium-duty welding applications. Featuring robust steel construction and 360° continuous rotation (0.1-1.2 RPM), this welding positioner handles up to 5-ton workpieces. The L-type design optimizes stability for structural steel and pipe welding, while servo motor control ensures accurate tilt (0-135°). Includes conductive slip rings to prevent cable twisting. Ideal for fabrication shops and pressure vessel production.

LHBJ-50 Welding Positioner

Model LHBJ-50 with lifting
Load Capacity (KG) 5000
Rotating Speed (RPM) 0.05-0.5
 Turnover Speed (RPM) 0.2
Turnover Angle (°) 0-120
Rotation Angle (°) 0~360
Worktable Size Diameter (MM) 900
L support’s length (MM) 1200
Min height of worktable (MM) 1000
Max height of worktable (MM) 2000
Power Supply (V) 50Hz 3ɸ 380 (Determined according to customer needs)
Speed Regulating Type AC Frequency Stepless Speed Regulation
Note: All specifications are of the standard equipment, that may be changed to suit the customers’ requirement.

1. Slewing bearing

Slewing bearing

The slewing bearing is a critical load-bearing component that enables relative rotation between machine parts while simultaneously handling axial, radial, and overturning moment forces. Its compact and lightweight design, made from high-strength alloy steel, ensures smooth operation with high precision (±0.05° rotation accuracy) and long service life. Key configurations include mounting bolt holes, optional internal/external gears, lubrication ports, and sealing systems for enhanced reliability. With a diameter range of 300–5000mm and load capacity up to 50,000kN, it is widely used in construction machinery, wind turbines, cranes, and military equipment. Custom designs are available for specialized applications.

  1. Gear

1). Reverse gear

Gear-2

Generally, the turning angle of the turning gear is 0 °to  90 °. The function of displacement is achieved by turning the table.

2). Reverse gear

Reverse Gear-1

Reverse Gear

Gear-1

Gears are toothed mechanical components that transmit torque through meshing engagement with other gear elements like racks, worms or additional gears, enabling precise control over power transmission by modifying speed/torque ratios, redirecting motion paths, and converting motion types (e.g., rotary to linear). Their interlocking teeth design provides reliable force transfer while allowing for customizable mechanical advantage in various industrial applications.

3.Reducer

Reducer

Gear reducers are mechanical power transmission devices that utilize precision gear systems to reduce input speed while proportionally increasing output torque, with the output torque being the product of motor torque and gear ratio (without exceeding the reducer’s rated capacity). These systems simultaneously decrease load inertia by the square of the reduction ratio, enabling optimized power conversion for various industrial applications through efficient gear engagement.

Motor

Motor-1

Proper maintenance of our L-type welding positioner ensures optimal performance for precision welding applications in pipe fabricationstructural welding, and pressure vessel manufacturing. The 5-ton capacity positioner requires regular care to maintain its ±0.5° rotation accuracy and robust load-bearing capability.

Maintenance Protocol

  1. Daily Care: Remove welding spatter, verify lubrication levels (using Mobilith SHC 220 grease), and inspect electrical connections.

  2. Weekly Checks: Tighten mounting bolts (85-95 Nm torque) and test emergency stop functions.

  3. Annual Service: Replace worn SKF bearings, recalibrate the servo drive system, and verify tilt mechanism alignment.

Operational Benefits

  • 30% extended service life compared to standard positioners

  • <0.3mm weld deviation throughout equipment lifespan

  • IP54-rated components resist industrial contaminants

Certification & Innovation
Our CE/ISO-certified positioner integrates:
✓ Permanent magnet servo motors for precise 0.1-2 RPM speed control
✓ Reinforced L-type arm for heavy pipe welding stability
✓ PLC-ready interface for automated welding cell integration

Product certification
Wuxi ABK Machinery Co.Ltd is a professional manufacturer of welding rotator in China. And our welding rotator mainly includes standard welding rotator, adjustable welding rotator, and special welding rotator. We can also provide our clients around the world with many other products including welding turntable, pile welding machine, wind tower production line, H beam welding line, pipe welding equipment, CNC cutting machine, grinding machine, roll forming machine, plate bending machine, etc. We have obtained ISO and CE certification, and we also offer OEM service.

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