Pipe Lay Tensioner

Overview

Pipe lay tensioners for S-lay, J-lay and reel-lay operations — engineered for high continuous tension, abrasive pipe coatings and 24/7 offshore duty.

Four diagonally-mounted carriages with polyurethane V-shaped pads — pad profiles selectable by product diameter (50–400 mm).
Hinged upper tracks on squeeze cylinders enable active clamping, quadrant by-pass and top-loading without breaking the product.
Closed-loop control, 0 – 35 t auto tension hold — variable-frequency electric drive (4 × 55 kW, planetary gearbox) with no hydraulic track HPU.

Key Features

PLC-controlled four-track continuous-tension system with closed-loop set-point
Diagonally-mounted carriages running polyurethane V-shaped pads — pad profiles selectable by product
Lower tracks frame-fixed; upper tracks on squeeze cylinders for active clamping
Hinged upper tracks enable quadrant by-pass and top-loading without product break
Open one-side design for fast deck loading and pad change-out
Variable-frequency electric drive (4 × 55 kW) with planetary gearbox — no hydraulic power-pack required for the tracks
Quick-connect cable remote for safe operation from the control cabin
Auto tension hold between 0 – 35 t (reduced set-points possible with ≤ 20% accuracy de-rating)

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Reference Photos

Built & Operated Offshore

Reference imagery showing typical pipe lay tensioner configurations and offshore deployment scenes.

Opposite-side perspective — open-side product loading access

Front view — four-track diagonal carriage layout

Side view — hinged upper tracks for quadrant by-pass and top loading

Reference photos are general industry illustrations of equipment of this type, used here for indicative purposes. Project-specific design renderings are provided as part of the formal engineering submission.

Specifications

Technical Data

Indicative configuration ranges. Final specification is project-dependent and confirmed during FEED.

Parameter	Value
Max Pull (pay-out, idler end)	35 MT
Laying Speed	0 – 1,200 m/hr
Number of Tracks	4
Track Contact Length	≈ 5.5 m
Friction Coefficient	0.15 nominal
Max Track Squeeze	140 t nominal
Max Grip Force	26 t/m nominal
Track Opening	20 – 400 mm nominal
Product Diameter Capacity	50 – 400 mm nominal
Tensioner Weight	≈ 65.2 t
Tensioner Dimensions (L×W×H)	8.15 × 2.45 × 3.53 m approx
Motor Rating	4 × 55 kW, 3-phase, 690 VAC, 60 Hz
Drive Type	Variable-frequency electric drive
Gearbox	Planetary
PLC	Siemens / Rockwell / Schneider
HMI / Remote	Local HMI panel + quick-connect cable remote

Delivery Methodology