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LBT-60A Steel Pipe Bending Testing Machine

Name: LBT-60A Steel Pipe Bending Testing Machine
Brand: Laibote (Tianjin) Testing Machinery
Availability: InStock

The LBT-60A “Welded (Low‑Pressure Fluid) Steel Pipe Bending Testing Machine” is a specialized device for conducting planar bending tests on metallic steel pipes. This equipment is a new‑generation product developed in accordance with GB/T 244‑2020 and ISO 8491:1998, “Metallic Materials — Pipe — Method of Bend Test.”

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Specialized Testing Machine Series

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E-mail:

lbt@lbt.ltd

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+86-15102211717

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LBT-60A Steel Pipe Bending Testing Machine

Description

Product Introduction:

The LBT‑60A “Welded (Low‑Pressure Fluid) Steel Pipe Bending Tester” is a specialized device for conducting planar bending tests on metallic steel pipes. Developed in accordance with GB/T 244‑2020 and ISO 8491:1998, “Metallic Materials — Pipe — Method of Bend Test,” this equipment is suitable for the bending test procedures specified in standards such as GB/T 13793‑2016 “Electric‑Resistance Welded Straight‑Seam Steel Pipes,” GB/T 3091‑2015 “Welded Steel Pipes for Low‑Pressure Fluid Transport,” and GB/T 8162‑2018 “Seamless Steel Pipes for Structural Applications.” In particular, the bending test for steel pipes outlined in Clause 5.5 of GB/T 3091‑2015—“Welded Steel Pipes for Low‑Pressure Fluid Transport” (for welded pipes with an outer diameter not exceeding 60.3 mm, i.e., ≤Φ60.3 mm)—has long been difficult to perform efficiently and in compliance with standard requirements. To address this challenge, technical experts, together with specialists from relevant fields and testing institutions, successfully developed a dedicated bending tester for welded (low‑pressure fluid) steel pipes. This machine enables efficient execution of the bending test specified in Clause 5.5.1 of GB/T 3091‑2015—“Process Performance: Steel Pipe Bending Test.” Widely employed by testing laboratories, steel pipe manufacturers, and pipeline companies, this product is used to evaluate the bending performance of metallic pipes. The GGW‑60 model welded (low‑pressure fluid) steel pipe bending tester is based on the GW‑40 rebar bending tester. For specimens of different nominal diameters, users simply replace the corresponding bending mandrel sleeve, adjust the bending radius, and swap out the rollers. With reliable accuracy, ease of operation, and a long service life, it stands as the most advanced welded (low‑pressure fluid) steel pipe bending tester currently available.

Technical Specifications:

Project	Parameter
Maximum diameter of bent steel pipe	Φ60.3
Positive bending angle	Arbitrarily set within 0–90°
Worktable rotational speed	≤20°/S
Motor power	1.5 kilowatts
Machine dimensions	1200×960×1100
Host weight	1000Kg

Structural Overview:

This steel pipe bending testing machine consists of the following components:

1. Frame; 2. Worktable; 3. Rotating work arm; 4. Clamping device; 5. Harmonic drive reducer (including brake motor); 6. Electrical components; 7. Accessories

Installation:

Install on a stable foundation, with a levelness error not exceeding 0.5/1000.

The yellow-green wire of the power supply is the neutral conductor; a three-phase five-wire system should be used (with black as the neutral). The power supply is 50 Hz, 380 V. After connecting the power, briefly press the forward‑bend button to verify that the rotation direction is correct before proceeding with normal operation. If the direction is reversed, simply swap any two of the live wires.

Instructions for use:

Startup: Close the main power switch of the device, press the power button to energize the unit, and the power indicator will illuminate. The device will enter standby mode, allowing you to configure parameters and control operation via the buttons.

Positive Bend Setting: Press and hold the “+/Positive Bend” key for approximately 2 seconds, then release. The device will enter the positive bend setting mode, with the units digit of the positive bend setting LED flashing. Press “+/Positive Bend” to increase the angle, or press “—/Negative Bend” to decrease it. Once the units digit is set, press the “Shift” key to make the tens digit of the positive bend setting LED flash; use the same procedure to set the hundreds digit. If no keyboard input is detected for more than 5 seconds, the setting mode will exit and the system will save the configured values.

Manual Positive Bend: After pressing the “Manual Positive Bend” button, the equipment will perform a positive bend operation; releasing the button will stop the positive bend.

Manual Reverse Bending: After pressing the “Manual Reverse Bending” button, the equipment will perform a reverse-bending cycle; releasing the button will stop the reverse-bending operation.

Automatic Positive Bending: After pressing the “Automatic Positive Bending” button, the equipment will perform automatic positive bending. It will continue until the set positive bending angle is reached or the limit position is attained, at which point the machine will stop the positive bending operation.

After the test is completed, press the Return key, and the device will automatically return to the starting position.

Stop and Reset: Press the “Stop/Reset” button. If the machine is running in “Automatic Positive Bending” mode, it will stop automatically and simultaneously reset the angle to zero. At the start of each test cycle, this button should be pressed to reset the system.

Emergency Stop: In the event of a device malfunction or an emergency, pressing the “Emergency Stop” button will disconnect the control circuit power, bringing the system to an immediate halt. This function is intended for emergency use only and should not be used for routine shutdowns.

Stop: After the test is completed, press the power switch until the power indicator light goes off, then switch off the main power supply to the equipment. The test is now finished.

Operation:

Prior to the test, the angular setpoint is first configured according to the test requirements; at this stage, the system has completed all preparatory settings.

1. Automatic Positive Bending Test

As shown in Figure 1, secure the work roll and the bending mandrel on the work plate. Press the “Jog Reverse Bend” button to rotate the working arm in the reverse direction back to its initial position, then insert the steel pipe. The clamping device will hold the specimen firmly in place. Next, press the “Jog Forward Bend” button to bring the forward‑rotating work roll into close proximity with the specimen, and then click the “Auto Forward Bend” button. The testing machine will automatically perform a forward (clockwise) bend while displaying the current bending angle in real time. When the preset angle is reached, the machine will stop automatically.

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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It measures heat deflection temperature and Vicat softening temperature of plastics, hard rubber, nylon, insulating materials and fiber-reinforced thermosetting composites. Intelligent temperature control guarantees precise heating rate, ideal for plastic raw material incoming inspection and formula development in plastic factories.

Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

What kinds of pipes fit your ring stiffness tester? Can it do long-term creep testing?

This equipment is designed for HDPE, PVC corrugated pipes, plastic drainage pipes and various plastic tubular products. Apart from ring stiffness, ring flexibility and flattening tests, it supports continuous long-term creep tests up to 1000 hours (42 days) as required by industry specifications, widely used for pipe factories and construction quality inspection institutes.

What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

Our WDW universal tester is applicable for tension, compression, bending, shearing and peeling tests of metal, plastic, rubber and composite materials. It supports test procedures in accordance with GB, ISO, ASTM, DIN, JIS multiple domestic and global standards. Equipped with high-precision servo drive and dedicated test software, it automatically collects, calculates and exports test data including tensile strength, elongation at break and elastic modulus.

Customer Reviews

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

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