Bolt Heaters

Uses:
Used with an oxy-acetylene torch for heating bottoming studs.

Specifications:
It is designed for use with 1/8” to 1/2” pipe extensions for heating stud holes from 1/2” to 1”.

Additional Options:
Both a regular length heater and a shorter version (for tight clearances) are available.

Any size tubing sizes and lengths are available upon request. Individual heaters can be ordered by themselves or with any of the various size tubes as rods are interchangeable.

Uses:
Used to preheat large, hollow holding bolts or studs where a high concentration of heat is critical for bolt expansion in a short time. Manufactured with a high watt density, they heat up in just a few minutes, resulting in cost savings on reduced man hours removing nuts from bolts and studs. Large bolts can be heated to full expansion in just a few minutes.

Specifications:
The hole diameter should be as close to heater diameter as possible, but within approximately 1/16” (.062) clearance for insertion applications. Close tolerance permits maximum heat transfer and prolonged heater life. Bolt Heaters come without plugs, but plugs can be added if requested

Additional Options:
Sizes for electric bolt heaters include: .250”, .313", .375”, .394, .438”, .472", .500”, .512", .531", .550”, .625", .669", .688”, .750", .787”, .938”, .984", 1”, and 1.250”.

Special Bolt Heater customizations are available for non-turbine applications such as pumps, valves and generators. Ask us for more information.

Note: We keep a few sizes of electric bolt heaters in stock, but most of them are made to order. If you need a Bolt Heater right away, consider a Gas Bolt Heater. They cannot be used in every application, but the sizing is more universal and they are always in stock.

Uses:
The Flexible Bolt Heater is designed for easier accessibility to tight, limited overhead clearances on bolts and studs. This heater can be bent up to 180 degrees or to any angle and back to a straight horizontal position without affecting performance.

Specifications:
It is offered in a high watt density on the heated length of the flex rod, which is manufactured of stainless alloy which resists corrosion, rust and thermal fatigue. Each unit is tested at a rated voltage and electrically tested before shipment. Units heat up to operating temperatures in approximately 5 minutes.

Additional Options:
The flexible bolt heater can be ordered to any length and diameter (3/8” diameter or larger). Typical sizes include: .375”, .438”, .500”, .560”, .688”, .750”, .813”, .938”. 

If you do not see the size you need here, contact us and we will make it for you. All flexible bolt heaters come complete with a 24” lead wire and optionally with a twist lock plug.