Product Overview
The JTBY-420PV-575 is a 420 mm precision square-hole laser cutting chuck designed for tube laser cutting machines that process large round tubes, square tubes and structural profiles.
With a clamping range of Ø20–420 mm for round pipes and support for square tubes up to 420 × 420 mm, this chuck provides greater flexibility for manufacturers handling different workpiece shapes and sizes on the same production line.
The square-hole structure also makes the chuck suitable for selected I-beams, channel steel, angle steel and other special profiles. When standard jaws cannot fully match the workpiece geometry, custom jaws can be supplied according to the profile dimensions and clamping requirements.
For front-and-rear chuck systems, the maximum combined load capacity reaches 1600 kg, making the JTBY-420PV-575 suitable for large and relatively heavy tube-processing applications.
It is a practical choice for laser tube cutting systems that require large clamping capacity, broad profile compatibility and a square-hole chuck configuration.
Why Choose a 420mm Square-Hole Laser Cutting Chuck?
The 420mm square-hole laser cutting chuck is designed for tube laser cutting applications that require both large clamping capacity and greater flexibility for different workpiece shapes.
Compared with a conventional round opening, the square-hole chuck design provides more usable clearance for square tubes and structural profiles. The JTBY-420PV-575 can clamp round pipes from Ø20 to Ø420 mm and accommodate square tubes up to 420 × 420 mm, making it suitable for manufacturers processing large-size tubes on the same laser tube cutting machine.
More Flexibility for Square Tubes and Profiles
The large square opening is particularly useful when cutting square tube, I-beam, channel steel, angle steel and other special-shaped profiles. It allows the chuck to handle a wider variety of workpiece cross-sections without limiting the application to round pipe cutting.
For non-standard profiles, custom chuck jaws can also be configured according to the workpiece dimensions and profile geometry.
Built for Large Tube Cutting Applications
With its 420mm clamping capacity, the JTBY-420PV-575 is suitable for laser tube cutting systems handling larger and heavier workpieces. In a front-and-rear chuck configuration, the maximum combined load capacity reaches 1600 kg.
For manufacturers that need to process a mix of large round pipes, 420 × 420 mm square tubes and structural steel profiles, the 420mm square-hole configuration provides a versatile solution for expanding the processing range of a tube laser cutting machine.
Workpiece Compatibility
The JTBY-420PV-575 420mm square-hole laser cutting chuck is designed for processing a wide range of tube and profile shapes. Its large square opening allows the chuck to handle round pipes, square tubes and selected structural steel profiles, while custom jaws can be configured for non-standard workpieces when necessary.
Compatible Workpiece Range
| Round Pipe |
|
| Square Tube | Up to 420 × 420 mm |
| I-Beam | Up to No. 22 |
| Channel Steel | Up to No. 22 |
| Angle Steel | Up to No. 22 |
| Special-Shaped Profiles | Custom jaw configuration available |
| Maximum Workpiece Load | Up to 1600 kg with two chucks |
Round and Square Tube Processing
The chuck supports round pipes from Ø20 mm to Ø420 mm and square tubes up to 420 × 420 mm, making it suitable for laser tube cutting systems that need to process both standard and large-size tubular workpieces.
The 420mm square-hole structure provides additional clearance for larger square sections, helping expand the usable workpiece range compared with smaller chuck configurations.
Structural Profile Compatibility
In addition to round and square tubes, the JTBY-420PV-575 can be used for selected I-beams, channel steel and angle steel.
Because structural profiles vary in cross-section and contact position, the actual clamping range should be confirmed according to the workpiece drawing before ordering.
Custom Jaws for Special Profiles
For irregular or special-shaped profiles that cannot be securely clamped with standard jaws, custom laser chuck jaws can be designed according to the workpiece geometry.
Customers are recommended to provide the profile drawing, overall dimensions and workpiece weight so that the suitable jaw configuration and clamping compatibility can be confirmed in advance.
Technical Specifications
| products |
 |
| Model | JTBY-420PV-575 |
| Chuck Type | Precision Version, Square-Hole Design |
| Nominal Clamping Capacity | 420 mm |
| Round Pipe Clamping Range | Ø20–420 mm |
| Square Tube Capacity | Up to 420 × 420 mm |
| I-Beam Capacity | Up to No. 22* |
| Channel Steel Capacity | Up to No. 22* |
| Angle Steel Capacity | Up to No. 22* |
| Special Profile Compatibility | Supported with suitable or custom jaws |
| Maximum Load Capacity | Up to 1600 kg for two chucks |
| Recommended Front Reducer | Flange 140, Reduction Ratio 1:4 |
| Recommended Rear Reducer | Flange 110, Reduction Ratio 1:3 |
| Jaw Configuration | Standard jaws / Custom jaws available |
| Typical Application | Laser tube cutting machines for round pipe, square tube and structural profiles |
Typical Industry Applications
The JTBY-420PV-575 can be used in laser tube cutting equipment serving industries such as:
Custom Laser Chuck Process
We provide custom laser chuck and OEM solutions based on different machine structures, workpiece sizes and clamping requirements.
Customers can either provide an existing technical drawing or send us the required specifications. If no drawing is available, we can prepare a customized drawing based on the application requirements for customer confirmation before production.
Submit Your Requirements
Send us your machine information, workpiece dimensions, clamping range and installation requirements. If you already have a technical drawing, you can submit it directly for evaluation.
Technical Evaluation
Our technical team reviews your application and evaluates the suitable chuck structure, jaw configuration and key technical parameters.
Drawing Preparation
We can work from your existing drawing or prepare a custom laser chuck drawing based on your confirmed requirements and application conditions.
Drawing Confirmation
The drawing and technical specifications are sent to you for review and approval. Production begins only after the final design is confirmed.
Production & Quality Inspection
The custom chuck is manufactured according to the approved drawing, with key dimensions, interfaces and functional requirements inspected before shipment.
Delivery & Technical Support
After final inspection, the chuck is prepared for delivery. Technical support is also available for installation, reducer matching, jaw selection and application requirements.
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How do I know whether the JTBY-420PV-575 is suitable for my laser tube cutting machine?
The most important factors are the machine interface, required clamping range, workpiece size, workpiece weight and reducer configuration. You can send us your machine dimensions or installation drawing, and we can check whether the JTBY-420PV-575 matches your equipment.
Is the square-hole design better for processing mixed workpiece shapes?
For applications involving both round pipes and non-round profiles, the square-hole structure provides more usable clearance than a conventional round opening. This makes it more practical for manufacturers that process square tubes, structural profiles and other varied cross-sections on the same laser cutting system.
When should I choose custom jaws instead of standard jaws?
Custom jaws are recommended when the workpiece has an irregular cross-section, limited contact area or a shape that cannot be securely supported by standard jaws. Providing the profile drawing allows the jaw contact position and clamping method to be evaluated before production.
Can one JTBY-420PV-575 chuck configuration be used for different types of workpieces?
Yes, the chuck can be configured for different round tubes, square tubes and selected structural profiles within its applicable range. However, when switching to special-shaped profiles, the jaw configuration may need to be adjusted or customized to match the actual workpiece geometry.
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