
The AirTAC B52-PB Copper-Free Pen-Type Cylinder B52-PB16X20SULB is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 20mm 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.
The B52-PB16X20SULB is AirTAC's copper-free (copper-prohibited) version of the PB16X20SULB, a JIS pen-size double-acting single-rod mini cylinder. The leading "B52-" prefix marks a build where copper and copper alloys are not permitted, making it suitable for ammonia systems and certain battery, electronics, or chemical plants. Please confirm the exact material substitutions with us, as our data does not specify them.
With a 16 mm bore, this model delivers 100.5 N of push force at 0.5 MPa and 140.7 N at the 0.7 MPa maximum. The slim SUS304 stainless barrel and 5 mm rod keep it light for tight jigs and end-of-arm tooling, while the fixed TPU bumper at each end decelerates the stroke. The 90-degree side inlet (U) allows flat plumbing against a machine frame.
| Model | Airtac B52-PB Copper-Free Pen-Type Cylinder B52-PB16X20SULB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 20 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.
| 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.
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×20 | 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).
In a plastic injection mold, the B52-PB16X20SULB can eject small caps or inserts with a 100.5 N push at 0.5 MPa. The 20 mm stroke clears the part, and the stainless barrel resists any mold condensation.
For a battery assembly line where copper is prohibited, this copper-free cylinder can drive a small tab-bending die. The 90-degree U inlet keeps air lines flat against the fixture, and the 50-800 mm/s speed range suits quick cycles.
On a light assembly jig, the B52-PB16X20SULB holds a bracket in place with about 60 N of safe working force. The LB bracket mounts to a vertical plate, and the 5 mm rod stays coaxial to avoid side loads.
For a 20 mm stroke at this force class, the B52-PB16X20SULB suits light pressing or clamping. If you need less force, step down to the 12 mm bore (56.5 N push @0.5 MPa); for more margin, there is no larger pen-size bore in the PB family, so consider a different series. Plan for about 60 N of real working load at 0.5 MPa, not the full 100.5 N, due to seal friction and smooth-travel practice.
This model includes the -S magnet for reed or electronic switch feedback, the U 90-degree side inlet, and the LB mounting bracket. The M5x0.8 port is fixed by the bore. Remember, this cylinder does not hold its load if air pressure is lost - the piston drifts, and the bumper only decelerates the final few millimeters. Use an external stop or rod lock for fail-safe holding.
Quick checklist
At 0.5 MPa, push is 100.5 N and pull is 90.7 N. At the 0.7 MPa maximum operating pressure, push is 140.7 N and pull is 126.9 N. The maximum pressure is 0.7 MPa, not 1.0 MPa. These figures are identical to the PB16X20SULB base model.
B52- is AirTAC's copper-free (copper-prohibited) build, for lines where copper alloys are not allowed, such as ammonia systems or some battery plants. The exact material substitutions are not in our data, so confirm them with us. This unit has the -S magnet for reed or electronic switches, a U 90-degree side inlet, and an LB mounting bracket.
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