Fabrication Services

• BendTec is the most experienced and technically sophisticated induction bending company in the Western Hemisphere with over 70,000 bends in service.
• Induction bending up to 66" in diameter and 6" in wall thickness.
• Bend tolerances above and beyond industry standards, including extra large bend radii.
• Carbon steel and high-strength X-grade bends.
• Stainless steel bends with pickling/passivating abilities

• Vessels
• Papermill Blowlines
• Riser Bends
• FCCU Regenerator Rings
• Air Preheat Rings
• Reactor Air rings
• Pressure Vessels
• Pneumatic Conveying Systems
• Fabricated Headers
• Titanium Bends
• Chemical Industries
• Farm Equipment Frames
• Industrial Assemblies
• Process Industries

Specialty Materials:  
Duplex Stainless Steels, Corrosion Resistance clad Pipe, Titanium, Ti-Nb, Aluminum, Nickel Alloy, Copper, and Copper Alloy & Inconel.

Our capabilities include:

• Piping layout and spools in 2D and 3D
• Piping detail and isometric drawing preparation
• Piping component (flanges, wyes, laterals, tees, and special fittings)
• Material selection and sourcing, economic studies, and cost estimating
• Metallurgical and welding consulting
• Specification assistance (writing, editing, revising)

Certifications:

• ASME Stamps U, S and PP Fabrication Facility
• ASME IX, AWS, and API-1104 Welding

Nondestructive Examination

• Liquid penetrant
• Magnetic particle
• Ultrasonic - Thickness, Shear Wave and Phased Array
• Radiographic
• Hydrostatic testing
• Hardness - Vickers, Rockwell, Brinell
• PMI - Positive Material Identification Equipment

Our specialized mechanical testing lab for determination of material properties is equipped to do the following:

Destructive Examination

• Tensile Testing - Tinius Olsen 400,000 lb tensile and compression
• Compression testing
  Up to 400,000-lb. capacity
• Hardness testing
  Vickers microhardness
  Rockwell hardness testing machine
  Brinell hardness testing, microhardness
• Charpy Impact Testing - 264 ft. lb. and 400 ft. lb.
  Elevated temperature and sub-zero
  Impact energy, shear, and lateral expansion
  Determination of impact energy, shear area, and lateral expansion
• Welding procedures and performance testing
  Root, face, and side bends and tensiles per ASME IX, API 1104, AWS D1.1
• Macro etching of welds
  Determining depth of penetration and heat-affected zones
• Laser tracker, coordinate-measuring machine

• Manual shielded metal arc welding
• Manual tungsten inert gas welding
• Flux-cored arc welding
• Submerged arc welding
• Hot wire tungsten arc welding
• Automatic Orbital GTAW welding equipment
• Portable Welding Machines (SMAW, FCAW, MIG, TIG)
• Longitudinal Seam Welder (20' travel, 8' high)

Union Affiliation: United Association of Journeyman and Apprentices of the Plumbing and Pipefitting Industry of USA and Canada (AFL-CIO)

Machining capabilities include specialized horizontal boring equipment for machining of pipe up to 60 inches in diameter.

Machining Equipment

• Planer mill: 20' x 60" x 60"
• Vertical mills
• Kearny tracker horizontal mills
• 16" lathe
• Boring mill
• Horizontal in-line boring mill: 23" bar with 22' travel
• End facing machines
• Radial drill press

Cutting Equipment

• Oxyacetylene and plasma burning machine with water table (17' x 60' table)
• Pantographic automatic flame cutter to 42" OD
• Band saw to 26" OD
• Band saw: 18" x 25"

• Boring of hollow cylinders up to 20 feet in length. IDs from 6 to 43 inches.
• Turning of cylinders and shafts up to 25 feet long and 38 inches in diameter. Turning of rings to 42 inches in diameter.
• Planing of shapes to 20 feet long, 5 feet high and 5 feet wide.
• Milling of components with heights to 10 feet and weights to 20 tons.

BendTec performs heat treatment operations on metals with induction heating equipment utilizing scanners and batch furnaces.

The following types of heat treatment are performed:

• stress relieving
• normalizing
• annealing
• quenching and tempering

The induction scanning equipment will handle pipe and shafts up to 42 feet long. One machine is capable of scanning bends with straight tangents on both ends.

Heat treating

• 50 ft. long, 20 ft. wide, 15 ft. high gas-fired oven, to 2,000 degrees Fahrenheit
• 9 ft. long, 9 ft. wide, 4 ft. high gas-fired oven, to 2,100 degrees Fahrenheit
• 2 car bottom furnances 54' x 13' x11'

Facilities are available for pickling and passivating stainless steels.

Blasting
BendTec utilizes steel shot and grit blasting equipment for most of its blast cleaning requirements. The major equipment for this cleaning is:

• A Guttmann wheel blasting machine, which uses a roller conveyor to move the material through the cabinet
• 2 blast rooms 30 ft. long, 12 ft. wide and 15 ft. high, which uses Vacublast blast recovery and recycle system
• Sandblasting equipment for metals other than steel

Painting
A ventilated and heated paint room with overhead conveying equipment is used for much of the painting requirements.

A 300 KW Pillar induction heating unit heats the pipe to about 500 degrees Fahrenheit. Epoxy powder is fused onto the pipe surface using electrostatic spraying equipment, where it melts and then solidifies upon cooling to provide an excellent corrosion-resistant coating for pipe that is to be buried underground.

Ceramic Lining
Ceramic Lining creates an abrasion-resistant coating inside the pipe. Pneumatic conveying of pulverized coal is the primary application for this process.

Urethane and Rubber Lining
We offer urethane and rubber lining to prevent erosion of piping.

BendTec’s plants are served by:

• Contract truck lines
• Burlington Northern Railroad
• Soo Line Railroad
• Chicago & North Western Railway
• U.S. and Foreign Flag Steamship Lines via the Seaway Port of Duluth, adjacent to our plant

BendTec uses the following equipment for making cold bends:

• Coast Rotary Draw Bender: 2" through 6" OD
• Pines Rotoform Bender: 2" through 6" OD