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2026-10-22

Welding Equipment Selector for Vessels, Wind Towers, Pipe and Structural Work

Direct answer. Use the workpiece type and the weld to be made—not the catalogue name—to choose a WUXI ABK starting family. Cylindrical shells and pipe that must rotate for girth welding start with an HGK adjustable or HGZ self-aligning welding rotator. Longitudinal seams start with an LH column-and-boom manipulator. Heads, nozzles, flanges and short fixtures that need tilt plus rotation start with an HBJ positioner or HB turntable. Published HGK/HGZ ratings are for one standard set (one drive unit + one idler unit) under an evenly distributed concentric load. Final model, support arrangement and options are confirmed in the signed technical specification.

1. Workpiece × process routing

Read the row that matches the workpiece and the joint. Then open the linked series page and send the RFQ inputs at the end of this page.

WorkpieceProcess / jointStart withConfirmed public modelsLeave the table if
Cylindrical vessel / tank shellCircumferential / girthHGK or HGZ rotatorHGK-10 / 50 / 200; HGZ-10 / 50 / 100Fit-up travel, extra idlers or rating above the published set is required
Cylindrical vessel / tank shellLongitudinal seamLH manipulatorLH-3030, LH-8080, LH-80150Torch, seam tracking and power source are buyer-supplied unless listed
Cylindrical vessel / tankHead, nozzle or flange orientationHBJ positioner or HB turntableHBJ-06 / 12 / 50; HB-10 / 30 / 50Workpiece needs continuous rotation of a long cylinder — use a rotator
Cylindrical vessel / tankShell-to-shell fit-upHydraulic fit-up rotator systemProject-specificDo not pick a catalogue tonnage from HGK/HGZ alone
Wind tower sectionCircumferential / girthHGK or HGZ rotatorSame rotator tableComplete growing line, canter or lifting arrangement is project-specific
Wind tower sectionLongitudinal SAWLH manipulatorLH-3030, LH-8080, LH-80150Envelope, foundation and welding head must be stated
Wind tower sectionComplete section / growing lineEngineered wind-tower packageProject-specific; see the wind-tower pageDo not infer a standard maximum from a marketing line page
Pipe spool / pipe sectionCircumferentialRotator if long/heavy; HBJ/HB if short and ≤5 tHGK/HGZ table or HBJ/HB tableEccentric fittings change both support load and traction
Pipe spool / pipe sectionLongitudinalLH manipulatorLH-3030, LH-8080, LH-80150Same interface rule as vessel long seams
H-beam / structural steelLong-seam SAW head positioningLH manipulatorLH-3030, LH-8080, LH-80150A full cut–assemble–weld–straighten–blast line is project-specific
H-beam / structural steelSmall assembly / fixtureHBJ or HBHBJ-06 / 12 / 50; HB-10 / 30 / 50Do not treat a positioner as a beam line
General part / fixtureTilt and rotateHBJ or HBSame positioner / turntable tableCylindrical production welding still belongs on a rotator

HGK versus HGZ. Choose HGK when roller spacing must be set for changing diameters. Choose HGZ when the self-aligning cradle should follow diameter inside the approved range. Both families use the same published rating convention.

2. Capacity class → confirmed model

Select from the maximum complete rotating or positioned weight, including flanges, internals, fixtures and temporary attachments. Do not select from empty-shell weight.

Complete weightGeometryFirst public models to discussRating note
≤ 0.6 tNeeds tilt / tableHBJ-06 (table 800 mm)Positioner rating is the table load in the approved attitude, not a rotator set
≤ 1 tNeeds tilt / tableHBJ-12 (1.2 t, table 1,000 mm) or HB-10 (table 800 mm)Confirm eccentricity and fixture mass
≤ 3 tNeeds rotate, limited tiltHB-30 (table 1,200 mm)Confirm duty and table size
≤ 5 tNeeds tilt / tableHBJ-50 (table 1,500 mm) or HB-50 (table 1,500 mm)If the part is a long cylinder, prefer a rotator
≤ 10 tLong cylinderHGK-10 or HGZ-10Standard set = 1 drive + 1 idler, concentric, even load
≤ 50 tLong cylinderHGK-50 or HGZ-50Same set definition
≤ 100 tLong cylinderHGZ-100Same set definition
≤ 200 tLong cylinderHGK-200Same set definition
Above the published set, or HGK-500 classHeavy cylinderEngineering review. HGK-500 is a documented reference configuration onlyRe-check load, diameter, speed and wheel data before quoting

Rotator diameter gates

ModelRated set capacity*Surface speedWorkpiece diameter
HGK-1010 t100–1,000 mm/min400–4,000 mm
HGK-5050 t100–1,000 mm/min400–6,000 mm
HGK-200200 t100–1,000 mm/min800–8,000 mm
HGZ-1010 t100–1,000 mm/min400–3,500 mm
HGZ-5050 t100–1,000 mm/min800–5,000 mm
HGZ-100100 t100–1,000 mm/min1,000–6,000 mm

*Rated capacity refers to one standard set comprising one drive unit and one idler unit under an evenly distributed concentric load. Individual-unit support load, tractive capacity, eccentric load, extra idlers and safety margin must be defined in the signed technical specification.

Manipulator travel

ModelColumn × boom envelope
LH-30303 × 3 m
LH-80808 × 8 m
LH-801508 × 15 m

Exact LH configuration, including travel, foundation and welding-head interface, remains project-specific.

3. What this page will not size

  • Effect percentages, cycle-time claims or unquoted production rates.

  • A complete H-beam or boiler line bill of materials from a dropdown. Those packages stay project-specific.

  • ASME, PED, API or EN 1090 as WUXI ABK company certificates. Those are buyer/project standards the equipment can be built to support.

  • Single-stand capacity equal to the published set rating.

  • HGK-500 as an off-the-shelf list-price model.

4. Send this for an engineering review

Email jan@weldc.com or use the contact page. Include:

  1. workpiece type (vessel / wind-tower section / pipe / H-beam / other);

  2. maximum and normal complete weight;

  3. min/max diameter, length and support spacing;

  4. centre-of-gravity position and attachments;

  5. joints to be welded (girth, long seam, head, nozzle);

  6. welding process and required surface speed;

  7. whether diameters change job-to-job (HGK vs HGZ);

  8. power supply, factory limits and FAT / document list.

Telephone: +86 510 83559158.
Address: 20#, Yangnan Road, Yangshi, Luoshe Town, Wuxi, Jiangsu, China.

Related pages: About Wuxi ABK Machinery · Product index · HGK adjustable rotators · HGZ self-aligning rotators · HBJ positioners · HB turntables · LH manipulators

Frequently asked questions

Does the published rotator capacity refer to one roller stand?
No. For public HGK and HGZ tables it refers to one standard set: one drive unit plus one idler unit, under an evenly distributed concentric load.

Can I select only by tonnage?
No. Diameter, support spacing, eccentricity, traction, wheel material and duty can rule out a catalogue size that looks large enough by weight.

Which model for a wind-tower can section?
Start with the rotator table for girth rotation and an LH manipulator for longitudinal SAW. A full growing line is engineered after section weight, diameter, length, process and shop layout are known.

Do you hold ASME or PED as company certificates?
No. WUXI ABK holds ISO 9001 as a quality-management-system certification. ASME, PED, API and EN 1090 are treated as purchaser/project standards. CE documents and third-party inspection are order-specific.

This selector is published by Wuxi ABK Machinery Co., Ltd. It routes buyers to confirmed public models; it does not replace the approved calculation, quotation or signed technical agreement. Last factual review: 8 October 2026. Reviewed by: WUXI ABK Technical Team.


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