Airtac PB Pen-type Cylinder PB6X50SR
The AirTAC Airtac PB Pen-type Cylinder PB6X50SR is a double-acting pen-size (mini) air cylinder with a Ø6mm bore and 50mm stroke. Its slim round barrel and back cover are stainless steel, the M5×0.8 ports keep plumbing compact, and the fast, low-friction piston suits high-cycle small-part handling.
- BoreØ6 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM5×0.8
- CushionElastic bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PB Pen-type Cylinder PB6X50SR
The AirTAC PB6X50SR is a JIS pen-size double-acting mini cylinder engineered for compact, high-frequency motion. It features a slim SUS304 stainless steel round barrel and piston rod, offering excellent durability in damp or mildly corrosive environments while keeping weight low for end-of-arm tooling. Delivering 14.2 N of push force and 10.6 N of pull force at 0.5 MPa, this 6 mm bore unit is built for precise small-part handling.
This specific configuration includes a built-in piston magnet (the S option) for position sensing using AirTAC reed or electronic switches, and an R axial air inlet for straightforward in-line plumbing via the M5x0.8 port. The unit relies on a fixed TPU bumper at each end to decelerate the stroke, and its 50 mm travel operates at speeds between 50 and 800 mm/s.
Airtac PB Pen-type Cylinder PB6X50SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB6X50SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Elastic bumper (both ends) |
| Max standard stroke | Up to 60 mm |
Specifications follow the official AirTAC PB pen-size datasheet. Piston rod and barrel are stainless steel. Confirm bore, stroke and back-cover option against the product label before installation.
Theoretical Output Force (Ø6mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 14.2 N | 10.6 N |
| 0.7 MPa (max) | 19.8 N | 14.8 N |
Values are taken from the AirTAC PB thrust table. Because pull acts on the rod-side annular area, pull force is always lower than push. Actual usable force is reduced by friction — size with a margin.
Model Code: Airtac PB Pen-type Cylinder PB6X50SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 6 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| CB / U / R | Back cover: CB double clevis, U 90° side inlet, R axial inlet (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PSB (single-acting push), PTB (single-acting pull), PBD (double rod), PBJ (adjustable stroke), PBR (front-mount).
Where the Airtac PB Pen-type Cylinder PB6X50SR Is Used
PCB Pick-and-Place
Drives lightweight suction nozzles to lift and position delicate circuit boards within dense electronic assembly machinery.
Lab Dispenser Actuation
Moves a 0.7 kg reagent tray vertically in analytical instruments where a compact 50 mm stroke and stainless build resist humidity.
Small Carton Flap Folding
Tucks thin cardboard flaps on compact packaging lines, using the fixed TPU bumper to soften the end of each rapid 50 mm extension.
Is the Airtac PB Pen-type Cylinder PB6X50SR the Right Cylinder?
When sizing this actuator, plan for a safe working load of roughly 9 N at 0.5 MPa, which accounts for standard seal friction and smooth travel. For vertical lifting, this equates to hoisting about 0.7 kg safely with a 2:1 margin. If you need less force, the Ø4 bore provides 6.3 N of push at 0.5 MPa, while stepping up to the Ø10 bore yields 39.3 N for heavier tooling. Keep in mind the thin Ø3 mm piston rod is designed strictly for coaxial thrust; over this 50 mm stroke, any off-axis load requires an external linear bearing to prevent binding.
A standard PB cylinder will drift and cannot hold a load if air pressure is lost or the valve is centered, as the bumpers only decelerate near the end of travel rather than locking the piston. To finalize your build, confirm the 6 mm bore, 50 mm stroke, M5x0.8 porting, S magnet, and R axial inlet configuration.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Slim pen body vs. a standard round cylinder
- ✓ Back cover: CB / U / R inlet direction
- ✓ Magnet (S) for sensors?
- ✓ Mounting: LB / FA / CJ or front thread
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.7 MPa operating pressure.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
- check Fit dust caps to ports during long-term storage.
- check Installation by qualified personnel per AirTAC docs.
Airtac PB Pen-type Cylinder PB6X50SR FAQ
This double-acting single-rod cylinder generates 14.2 N of push and 10.6 N of pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it yields 19.8 N push and 14.8 N pull. It operates between 0.15 and 0.7 MPa at speeds of 50-800 mm/s.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumpers only decelerate the rod near the stroke ends and do not function as a locking brake. For fail-safe vertical holding, you must add an external rod lock or mechanical stop.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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