Wind Tower Section Clamp

Name: Wind Tower Section Clamp
Brand: HEAVYLT

Overview

Every tower section has to be lifted several times before it is a tower: off the fabricator's storage frame, onto the transport adapter, off again at site, and finally into position. The traditional way to do that is to weld lifting lugs to the shell — which means welding on a certified pressure-part-thickness steel tube, then cutting the lugs off, then inspecting the area you just welded and cut. That is slow, it needs a welder and an NDT crew at every handover, and it leaves a heat-affected zone exactly where the shell is most highly stressed.

The HEAVYLT tower section clamp does the job without touching the steel. It is a hydraulic clamping ring that grips the outside of the tube, with non-marking pads protecting the coating. Grip increases with load — the ring is mechanically self-locking, so a loss of hydraulic pressure does not release the section — and one clamp body covers a range of diameters through interchangeable contact sets.

It is used with cranes and spreader beams for lifting, and with the tower transport adapter for loading and unloading, which means the same interface appears at every handover in the chain. Units are load tested and supplied with test documentation; certification requirements are confirmed per order.

Key features

Grips the shell from outside — no welded lugs, no weld removal, no post-lift NDT of the weld area
Mechanically self-locking: the load increases the grip, so a pressure loss does not drop the section
Non-marking contact pads protect the coating through every handover
One clamp body covers a range of diameters with interchangeable contact sets
Interfaces with cranes, spreader beams and the HEAVYLT tower transport adapter
Same clamping interface at the yard, on the vehicle and at the site

Applications

Tower section lifting at fabricator and storage yards
Loading and unloading tower sections on transport adapters
Site lifting and installation support
Repowering and tower replacement handling

Specifications

Type	Hydraulic tower section clamp (lifting / handling)
Clamping diameter	2.0 m – 5.2 m, via interchangeable contact sets
Working load limit	50 t – 250 t
Actuation	Hydraulic, mechanically self-locking — grip increases with load
Contact	Non-marking pads, protects the section coating
Interfaces	Crane hooks, spreader beams, tower transport adapter
Welded lugs required	None
Documentation	Load tested; test certificate per unit on request

Specifications are indicative. Confirm the exact configuration for your project with HEAVYLT.

Contact details

Email	[email protected]
Phone / WhatsApp	+86 186 0768 9697

FAQ

Why use a clamp instead of welded lifting lugs?

Because welding on the shell means cutting off afterwards and inspecting the area you welded and cut, at every handover, and it leaves a heat-affected zone on a highly stressed part of the tube. The clamp grips the outside instead: no welding, no cut-off, no re-inspection, and the coating stays intact.

What diameters and loads does it cover?

Clamping diameter 2.0 m to 5.2 m through interchangeable contact sets, with working load limits from 50 t to 250 t. That spans the current large onshore and offshore tower sections; outside the range, the ring is quoted to the section drawing.

Is it safe if hydraulic pressure is lost?

Yes. The ring is mechanically self-locking and the grip increases with the load, so a pressure loss does not release the section. Units are load tested and supplied with test documentation, with certification requirements confirmed per order.

Can it be used with our own crane and spreader beam?

Yes — the clamp presents standard lifting interfaces for crane hooks and spreader beams, and it also mounts on the HEAVYLT tower transport adapter so the same clamp serves both lifting and transport handling.