Cost-Effective Hydrostatic Tester Machine for Industry

ERW Carbon Steel Tube Mill

Tube Mill Machine Compose

Cold Roll Forming Machine

Steel Coil Slitting Line

Carbon Steel Coil Slitting Line

Steel Coil Cut To Length Line

Auxiliary Equipment And Spare Parts

Coil car for ERW Tube Mill

The loading trolley is an essential part of the front-end feeding system in an ERW (Electric Resistance Welded) pipe production line. It is mainly used to safely and smoothly transfer steel coils to the uncoiler, facilitating subsequent processes such as uncoiling, leveling, and forming.

Product Details

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Product Details

Product Description

1. Overview

The loading trolley is a critical component of the front-end coil feeding system in an ERW tube mill line. It is primarily used to transport steel coils safely and smoothly from the ground to the centerline of the uncoiler spindle. Its purpose is to improve feeding efficiency, reduce manual intervention, and ensure accurate coil positioning, thereby ensuring stable raw material input for subsequent uncoiling, leveling, shearing, or forming processes.

2. Main Functions

Coil Carrying: Designed to bear heavy-duty steel coils with large outer diameters and high weights.
Longitudinal Movement: Moves forward and backward along ground rails to position the coil precisely in front of the uncoiler.
Lifting and Alignment: Equipped with a hydraulic or motorized lifting system to adjust coil height and align with the uncoiler spindle.
Automatic Centering (optional): Works with limiters or sensors to assist in transverse centering of the coil.
Linked Control: Can be electrically interlocked with the uncoiler for improved automation and operational safety.

3. Structural Components

Main Frame: Welded steel structure with high strength and rigidity.
Rail System: Ground-mounted rails for guiding the trolley in linear motion.
Drive System: Electric motor with gearbox or hydraulic drive, equipped with brake function.
Lifting Mechanism: Hydraulic cylinder, chain, or screw-based system ensuring stable and precise elevation.
Control System: Operated via control box, remote controller, or integrated with the central control panel.
Safety Devices: Includes limit switches and buffers for safe and controlled movement.

4. Technical Parameters (Typical Values – Subject to Design or Contract)

Item	Parameter Range
Max Coil Weight	3–20 tons (customizable)
Coil Width Range	300–1600 mm
Coil Outer Diameter	Ø800–Ø2000 mm
Travel Speed	6–15 m/min
Lifting Stroke	300–600 mm
Control Mode	Manual / Semi-automatic / Linked
Drive Type	Electric / Hydraulic

5. Application Description

In practical operation, the steel coil is first lifted and placed onto the loading trolley platform using a crane. The trolley then travels along the rails to the uncoiler’s centerline. Simultaneously, the lifting mechanism adjusts the coil height to align with the spindle. After the coil is successfully loaded onto the uncoiler, the trolley returns to its initial position to wait for the next loading cycle. The entire operation is stable, safe, and efficient, making the loading trolley an indispensable auxiliary device in modern welded pipe production lines.

Enter Section Equipments
1. Coil car and Storage
2.Single And Double Heads Un-coiler & Hydraulic And Pneumatic Un-coiler
3.Peeler and hold down roll arm
4.Flattening Machine
5.Automatic and Semi Auto Shearer & Butt Welder
6.Vertical Cage Accumulator & Horizontal Loop Accumulator & Landing Horizontal Spiral Loop Accumulator

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Spare Parts and Consumble Parts

1. Rollers, Moulds, Dies, D2,D3 material to choose
2. Ferrite, Impeder, Fiberglass tube
3. HSS saw blades, TCT Saw blades, Friction saw blades
4. OD burr remove inserts, ID burr remover inserts
5. HF welder Induction Coil and other HF welder spare parts
6. Copper tube for induction Coil, PTFE pipe for Induction Coil
7. Mosfet, Boards
8. Steel pipe Strapping machine
9. Zinc Spray Machine, Zinc wire, Zinc spray gun

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After-sales service

1.Machine test running videos will supply to customer before shipment.
2.Online techenical support WHOLE LIFT FREE.
3.Professional engineers team to install the machine, train your employee well.
4.One year warranty and life-long technical support.
5 .24 hours for engineer response.
6.Your business relationship with us will be confidential to any third party.
7. We welcome customers to visit our factory anytime.

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Frequently Asked Questions (FAQ)

Why is water preferred over air for testing?

Water is incompressible, making it safer and more reliable than compressed gas.

What pressure is typically applied?

Normally 1.3 to 1.5 times the design pressure of the tested equipment.

Can the hydrostatic tester be automated?

Yes, modern machines use PLC or touchscreen control systems for automation and digital data logging.

Which industries use hydrostatic testers?

Oil & gas, chemical plants, power generation, water supply, boiler and heat exchanger manufacturing, and cylinder testing facilities.

How often should vessels be tested?

Testing intervals depend on regulations (ASME, DOT, ISO) and usually range from 1 to 5 years.

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