Airtac PB Pen-type Cylinder PB16X45SR
The AirTAC Airtac PB Pen-type Cylinder PB16X45SR is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 45mm 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.
- BoreØ16 mm
- Stroke45 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X45SR
The AirTAC PB16X45SR is a JIS pen-size double-acting single-rod mini cylinder, delivering a robust 100.5 N push and 90.7 N pull at 0.5 MPa. Its slim SUS304 stainless round barrel and screwed-in covers make it ideal for tight jigs and light end-of-arm tooling where space and payload matter. The built-in S magnet allows position detection using AirTAC reed or electronic switches.
This unit features an R axial air inlet for in-line plumbing and an M5x0.8 port. It operates at 50-800 mm/s with a fixed TPU bumper at each end that decelerates the piston near stroke limits. For high-speed cycles with heavy tooling, meter-out the exhaust or add an external shock absorber, as the bumper is not adjustable.
Airtac PB Pen-type Cylinder PB16X45SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X45SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 45 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 300 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 100.5 N | 90.7 N |
| 0.7 MPa (max) | 140.7 N | 126.9 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 PB16X45SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×45 | 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 PB16X45SR Is Used
PCB Depaneling Router
Clamps small daughterboards during routing operations, using the 100.5 N thrust to secure the panel while the slim barrel fits between crowded tooling heads.
Carton Flap Folder
Tucks minor flaps on small pharmaceutical cartons at high speed, relying on the fixed TPU bumper to soften the 45 mm stroke impact without external adjustment.
Lightweight Vertical Lift
Raises delicate electronic sensors between test stations, safely lifting about 5.1 kg vertically when applying a 2:1 safety margin on the 0.5 MPa force.
Is the Airtac PB Pen-type Cylinder PB16X45SR the Right Cylinder?
When sizing this 16 mm bore actuator, plan for a safe working load of about 60 N (roughly 60% of the 100.5 N push at 0.5 MPa) to account for seal friction. If you need to step down, the 12 mm bore provides 56.5 N push at 0.5 MPa; stepping up beyond 16 mm requires moving to a different body family. A plain PB-type does not hold its load on air loss or valve centring—the piston drifts and the bumper only decelerates near stroke end. For a fail-safe hold, specify an external stop or rod lock. Confirm your ordering essentials: 16 mm bore, 45 mm stroke, M5x0.8 port, S magnet, and R axial inlet.
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 PB16X45SR FAQ
This double-acting cylinder delivers 100.5 N push and 90.7 N pull at 0.5 MPa, and 140.7 N push and 126.9 N pull at 0.7 MPa (the maximum operating pressure). It operates at 50-800 mm/s, uses an M5x0.8 port, and has a 16 mm bore with a 45 mm stroke.
No, a plain PB-type cylinder does not hold its load when air is lost or the valve is centred. The piston drifts, and the fixed TPU bumper only decelerates it near the stroke end. You must add an external stop or rod lock for fail-safe holding. The thin Ø5 mm rod is built for coaxial thrust, so use an external guide for off-axis loads.
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