JFY Pneumatic Sheet Clamp for CNC Turret Punch Press
Pneumatic sheet clamp for JFY (Jinfangyuan) CNC turret punch presses, designed to securely grip sheet metal during automatic feeding, positioning and punching. Powered by compressed air, the clamp works with the machine's coordinate positioning system to provide reliable workpiece holding during high-speed movement and repeated punching cycles. Replacement solutions are available according to the JFY machine model, original clamp configuration and mounting dimensions.
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Description
JFY Pneumatic Sheet Clamp for CNC Turret Punch Press
The JFY Pneumatic Sheet Clamp is an important workholding component used in the sheet feeding and positioning system of JFY CNC turret punch presses.
Powered by compressed air, the clamp securely grips the sheet metal and maintains its position relative to the machine's coordinate movement system during automatic punching.
As the CNC system commands the sheet to move between programmed punching coordinates, the clamp must maintain a stable grip while the workpiece repeatedly accelerates, decelerates and changes direction.
Reliable clamping helps ensure that the sheet follows the programmed movement accurately, contributing to consistent hole positioning, punching repeatability and stable automated production.
WYS MACHINERY supplies this type of pneumatic work clamp / sheet gripper as a replacement component for compatible JFY turret punch press models.
How the Pneumatic Sheet Clamp Works
The clamp uses compressed air to actuate its gripping mechanism.
During normal punching:
1. Sheet Loading
The sheet metal is positioned within the working area of the machine.
2. Pneumatic Clamping
Compressed air actuates the clamp mechanism, allowing the clamp jaw to securely grip the sheet.
3. CNC Sheet Movement
The machine positioning system moves the clamped sheet along the programmed coordinates.
4. Punching
The turret punch press performs punching operations at each required position.
5. Continuous Repositioning
The sheet continues moving between programmed positions while remaining securely connected to the positioning system.
For large sheets requiring a re-clamping cycle, the clamp can also release and grip the sheet again as part of the machine's sheet repositioning process, depending on machine configuration.
Key Features
- Designed for JFY CNC turret punch press applications
- Pneumatic operation using compressed air
- Secure gripping of sheet metal during punching
- Fast clamp opening and closing response
- Supports automatic sheet feeding
- Supports CNC coordinate positioning
- Suitable for repeated high-speed movement
- Helps maintain workpiece positioning accuracy
- Suitable for automatic sheet repositioning applications
- Heavy-duty workholding construction
- Suitable for maintenance and replacement applications
- Replacement matching according to machine model
- Identification available according to original clamp photos and dimensions
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | JFY Pneumatic Sheet Clamp |
| Alternative Terms | Sheet Gripper / Work Clamp / Feeder Clamp |
| Machine Type | CNC Turret Punch Press |
| Application Brand | JFY / Jinfangyuan |
| Power Source | Compressed Air |
| Actuation | Pneumatic |
| Main Function | Sheet Gripping & Workholding |
| Related Function | Feeding / Positioning / Repositioning |
| Installation | Machine-Specific |
| Mounting Dimensions | According to Machine Model |
| Pneumatic Interface | Model-Specific |
| Replacement | Available |
| Model Matching | Available |
Sheet Gripping & Workholding
The clamp is responsible for maintaining a secure connection between the sheet metal and the machine's positioning mechanism.
During CNC punching, even a small amount of unintended sheet movement can affect the positional relationship between programmed coordinates and the actual workpiece.
A properly functioning pneumatic sheet gripper helps provide:
Reliable Workholding
Keeps the sheet securely clamped during movement.
Accurate Sheet Positioning
Allows feeder movement to be transferred accurately to the workpiece.
Repeatable Punching
Supports consistent positioning across repeated punching cycles.
Stable High-Speed Movement
Helps maintain sheet control during acceleration and deceleration.
Role in the CNC Sheet Feeding System
The pneumatic clamp should be understood as part of the sheet feeding and workholding system, rather than the complete feeder itself.
The relationship can be described as:
CNC Control → Positioning / Feeding System → Pneumatic Sheet Clamp → Sheet Metal
The feeding mechanism creates the required movement, while the clamp securely connects the sheet to that movement system.
For this reason, the product is also relevant to customers searching for:
punch press feeder parts
sheet feeding parts
sheet gripper
workholding parts
CNC punch press positioning parts
Large Sheet Repositioning
Large-format sheet metal may exceed the available working travel of the machine under a single clamping position.
On machines equipped for automatic repositioning, the sheet can be temporarily secured while the work clamp releases and moves to another gripping position.
The clamp then grips the sheet again so that punching can continue in the remaining area.
This makes the pneumatic sheet clamp an important component in large sheet punching and automatic repositioning applications.
Typical Applications
This JFY pneumatic sheet clamp is suitable for:
- CNC turret punch presses
- Automatic sheet feeding
- Sheet metal gripping
- CNC workpiece positioning
- High-speed punching
- Automatic sheet repositioning
- Large-format sheet processing
- Electrical cabinet manufacturing
- Sheet metal enclosure production
- HVAC sheet processing
- General sheet metal fabrication
- Punch press maintenance
- Work clamp replacement
- Feeder and positioning system repair
JFY & TRUMPF Spare Parts Applications
JFY has been part of the TRUMPF Group for many years; TRUMPF acquired a majority interest in JFY in 2013 and completed the acquisition of the remaining shares in 2019. JFY continues to manufacture machines under its own brand.
WYS MACHINERY supplies various replacement and compatible spare parts for JFY and TRUMPF machine applications, including components used in punching, feeding, positioning, pneumatic and hydraulic systems.
Some components or specifications may be shared across particular machine platforms, while others are machine-specific. Therefore, compatibility should always be confirmed according to the machine model, original part number, component dimensions and installation configuration.
这里的最后一句非常重要。这样既可以合理利用 JFY + TRUMPF spare parts 的关键词关系，又不会错误声称两个品牌所有零件都通用。
Replacement & Model Matching
Different JFY turret punch press models may use different pneumatic clamps.
For accurate replacement, customers can provide:
- JFY machine model
- Machine production year
- Original clamp part number
- Photos of the existing clamp
- Overall dimensions
- Mounting dimensions
- Mounting hole positions
- Clamp jaw dimensions
- Pneumatic connection information
If the original part number is unavailable, detailed photos and dimensional information can be used for technical identification.
WYS MACHINERY CNC Punch Press Spare Parts
WYS MACHINERY supplies a growing range of CNC punch press replacement parts and maintenance components for domestic and international machine applications.
The product range can include:
- Pneumatic sheet clamps
- Sheet grippers
- Repositioning components
- Hydraulic valves
- Hydraulic accumulators
- Hydraulic oil return buffers
- Hydraulic filter elements
- Pneumatic components
- Feeding and positioning components
- Punch tooling parts
This allows customers maintaining older or existing CNC punch presses to source multiple replacement components according to machine requirements.
