
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB10X45CB is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø10mm bore and 45mm stroke. A single air port drives the pull stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
The AirTAC PTB10X45CB is a JIS pen-size single-acting pull cylinder with a 10 mm bore and 45 mm stroke. Air entering the single M5x0.8 port retracts the rod, while an internal spring pushes it back out upon exhaust release. This provides a fail-safe extended state during air loss, ideal for holding parts tensioned. You get 23.5 N of net pull at 0.5 MPa (36.7 N at the 0.7 MPa maximum), with the return spring force already deducted.
Because the powered stroke acts on the smaller rod-side annular area, this pull rating is lower than a matching push-type unit. The slim SUS304 stainless body incorporates a fixed TPU bumper at each end to soften end-of-stroke impacts. The CB double clevis back cover supports pivoting mountings, and the M8x1.0 rod-end thread accepts standard attachments.
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB10X45CB |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 45 mm |
| Acting type | Single acting, pull type (spring extend) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Return | Return spring (pull by air) |
| Max standard stroke | Up to 60 mm |
The spring holds the rod extended; applying air retracts it, and removing air lets the spring push the rod back out. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 23.5 N |
| 0.7 MPa (max) | 36.7 N |
These are the usable pull forces after the return spring is subtracted, taken directly from the AirTAC single-acting thrust table. Minimum operating pressure is set by the spring, so this model needs at least the lower pressure shown to move.
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×45 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R | Back cover: R axial inlet (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PSB (single-acting push), PBD (double rod), PBR (front-mount).
Uses the CB clevis to swing into position; air retracts the rod to release a part, and the spring fail-safe extends automatically if air drops.
Maintains steady pulling tension on a light conveyor belt; the single air line simplifies valving while the spring keeps the belt taut by default.
Pulls a small diverter gate open on command; the spring pushes the gate closed to a safe home position during an emergency pressure loss.
This 10 mm bore generates 23.5 N net pull at 0.5 MPa. If your jig needs less force, the 6 mm bore offers 7.1 N; stepping up to the 12 mm bore provides 33.1 N. Remember the internal spring sets a 0.2 MPa minimum pressure before motion begins. Plan for a safe working load of roughly 14 N (about 60 percent of the 0.5 MPa rating) to account for seal friction. For vertical lifts, expect to pull or hold about 1.2 kg with a sane 2:1 safety margin.
The 45 mm stroke sits well below the 60 mm single-acting limit. The thin Ø4 mm piston rod handles coaxial thrust well, but over this 45 mm length you should add an external linear bearing if any off-axis load is present. The CB double clevis inlet allows articulated mounting. Confirm your solenoid output and clevis pin size when ordering.
Quick checklist
It provides 23.5 N of net pull at 0.5 MPa and 36.7 N at the 0.7 MPa maximum. Because the internal spring opposes motion, a minimum of 0.2 MPa is required before the rod begins to retract. The spring automatically extends the rod if air pressure is lost.
This bore uses a fixed TPU bumper at each end that only decelerates the last few millimeters of travel. It is not adjustable. Above mid-speed with real tooling mass the bumper can bottom out, so you should meter-out the exhaust or add an external shock absorber.
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