Pneumatic cylinder
CJP Needle Cylinder
CJP Needle Cylinder
Specifications
- Material
- Aluminum alloy
- Operation pressure
- 0.1-0.9Mpa
- Working Medium
- Air
- Working temperature range
- -5-60 degree
CJP Series Compact Needle Pneumatic Cylinder
The CJP Series Needle Pneumatic Cylinder is a compact linear actuator designed for machines and pneumatic mechanisms where installation space is extremely limited.
Its slim threaded-body structure allows the cylinder to be installed directly through a panel or inserted into a machine component. This makes it particularly suitable for short-stroke positioning, ejecting, stopping, clamping and component-separation operations.
The series is available with 6 mm, 10 mm and 15 mm bore sizes and strokes from 0 to 30 mm. Both double-acting and single-acting pull-in configurations are available.
Customers can also choose between a threaded or non-threaded piston-rod end according to the connection method required by their equipment.
Key Features
Ultra-Compact Needle Design
The narrow cylindrical body requires considerably less installation space than many conventional square or tie-rod cylinders.
It is suitable for use inside:
- Compact machine frames
- Small assembly fixtures
- Tooling plates
- Inspection systems
- Electronic-component equipment
- Packaging mechanisms
Three Bore Sizes
The CJP Series is available with the following bore diameters:
- 6 mm
- 10 mm
- 15 mm
This range allows designers to select a compact cylinder according to the required force and available mounting space.
Short-Stroke Operation
Available strokes range from 0 to 30 mm, making the cylinder suitable for precise short-distance movements such as stopping, pushing, ejecting and locating.
Double-Acting and Single-Acting Options
The series supports:
- Double-acting operation
- Single-acting pull-in operation
A double-acting model uses compressed air for both extension and retraction. The single-acting pull-in model uses air pressure in one direction and an internal return mechanism for the opposite movement.
Panel or Insert Mounting
Two principal mounting configurations are shown:
- CJPB: Panel-mount type
- CJPS: Plug or insert-mount type
The threaded external body allows the cylinder to be secured directly in a panel or inserted into a suitable machine component.
Optional Piston-Rod Thread
The piston rod can be supplied with or without an external connection thread:
- Blank code: with piston-rod thread
- B code: without piston-rod thread
The threaded version facilitates connection to a workpiece, bracket or mechanical linkage. The non-threaded version is suitable for direct pushing, stopping or contact operations.
Simple Non-Cushioned Construction
The product does not incorporate pneumatic end cushioning. Its simple construction is well suited to lightweight, short-stroke and relatively low-impact applications.
Technical Specifications
Item | Specification |
Product series | CJP |
Product type | Compact needle pneumatic cylinder |
Bore sizes | 6, 10 and 15 mm |
Stroke range | 0–30 mm |
Working medium | Compressed air |
Motion pattern | Double acting or single acting pull-in |
Proof pressure | 1.05 MPa |
Approximate proof pressure | 10.5 kgf/cm² |
Maximum operating pressure | 0.7 MPa |
Approximate maximum pressure | 7 kgf/cm² |
Minimum operating pressure, 6 and 10 mm bore | 0.2 MPa |
Minimum operating pressure, 15 mm bore | 0.15 MPa |
Operating-temperature range | 5–60°C |
Cushioning | None |
Stroke-length tolerance | +1.0/0 mm |
Air port | M5 × 0.8 |
Standard mounting configurations | Panel mount or plug/insert mount |
Piston-rod thread | Available with or without thread |
The proof-pressure value is intended for product verification and must not be used as the normal continuous working pressure.
Available Bore and Stroke Range
Bore Size | Available Stroke Range |
6 mm | 0–30 mm |
10 mm | 0–30 mm |
15 mm | 0–30 mm |
The dimension table supplied with the drawing provides reference dimensions for 5 mm, 10 mm and 20 mm strokes. Other strokes within the 0–30 mm range should be confirmed before ordering.
Piston-Rod and Body Threads
Bore Size | Piston-Rod Thread MM | Body Mounting Thread NN |
6 mm | M3 × 0.5 | M10 × 1.0 |
10 mm | M4 × 0.7 | M15 × 1.5 |
15 mm | M5 × 0.8 | M22 × 1.5 |
The MM dimension applies to models supplied with a threaded piston rod. Models ordered with the B suffix have no piston-rod thread.
