Multi-Stage Hydraulic Bolt Tensioner – MST Series

Tritorc’s MST Series Multi-Stage Hydraulic Bolt Tensioner delivers high-precision tensioning in confined, high-load applications. Its multi-cylinder design applies greater force within small diameters, ensuring accurate, uniform tension. Built for heavy-duty performance, it enhances safety, efficiency, and reliability in power plants, refineries, and industrial maintenance.

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Overview

Tritorc’s MST Series Multi-Stage Hydraulic Bolt Tensioner handles high-pressure bolting in tight spaces with unmatched precision. Its advanced multi-cylinder system delivers higher tension loads in smaller diameters, accelerating operations and improving accuracy. With features like automatic piston return and a heavy-duty gearbox, it streamlines bolt rundown. Engineered for the toughest jobs, the MST Series supports critical applications across oil & gas, energy, and heavy industrial sectors.

Features

Multi-cylinder tensioning.
Slim profile
Automatic piston return
Heavy-duty gearbox
Sturdy design

Benefits

Simultaneous multi-stage tensioning
Suitable for confined spaces
Long-lasting and durable
Improves safety

Technical Specification

Model	Bolt Diameter		The Min. Length of Thread	The Max. Length of Thread	Working Stroke	Bolt Distance	Max. Load	Outside Diameter	Min. height
Model	mm	in	mm	mm	mm	mm	kn	mm	mm
MST-M30	M30	1-1/8″	62	69	7	66	464	73	276
MST-M33	M33	1-1/4″	66	73	9	72	583	78	295
MST-M36	M36	1-3/8″	75	82	9	77	677	84	326
MST-M39	M39	1-1/2″	78	88	10	83	805	90	360
MST-M42	M30	1-5/8″	83	91	10	89	926	96	357
MST-M45	M42	1-3/4″	87	96	10	96	1091	105	371
MST-M48	M48	1-7/8″	93	102	10	102	1231	110	387

Frequently Asked Questions

What advantage does multi-stage tensioning offer compared to normal bolt tensioners?

Multi-stage tensioning distributes the load across multiple cylinders, allowing for higher tensioning forces in smaller diameter spaces and ensuring greater precision in critical bolting tasks.

Is the MST Series suitable for industries with space constraints?

Yes, its slim profile is designed specifically for use in confined spaces like offshore platforms, refineries, and power plants.

How does the MST Series ensure safety during high-load operations?

The tool is built with robust construction to handle high pressure, and the multi-stage system ensures even load distribution, minimizing the risk of bolt failures.

What role does the automatic piston return feature play in improving efficiency?

It allows for faster operation by resetting the tool automatically after each cycle, enabling quicker bolting in time-sensitive projects.

Can this tensioner be used in different industrial environments, such as aerospace and offshore industries?

Yes, the MST Series is designed for high-load applications in various industries, including aerospace, offshore oil and gas, and power generation.

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