This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ12X100-20B, the same code under the new prefix. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-20B
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ12X100-20B is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 100mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X100-20B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke100 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X100-20B
- 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 ACPJ Adjustable Compact Cylinder ACPJ12X100-20B
The ACPJ12X100-20B is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 100 mm stroke by up to 20 mm, giving a usable range of 80-100 mm on site. This 12 mm bore unit delivers 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 N / 59.4 N at 0.7 MPa), with a theoretical maximum of 11.5 kgf at 1.0 MPa. The 100 mm stroke exceeds the 50 mm standard limit for bore 12, so it is a made-to-order build. Note: this model is discontinued - the current-production replacement is ACEJ12X100, so confirm ISO 21287 mounting dimensions before swapping since the ACP follows the DIN standard.
Its short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures, guards and gantry arms. A useful sizing rule: about 0.6 of the push force, roughly 34 N, is realistic working output at 0.5 MPa - which corresponds to lifting about 3 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers sit at both ends, and speed runs 30-500 mm/s. The B code gives a male rod thread; the magnet is the optional -S code and is not fitted here, so no CMSE / DMSE switch can be mounted on this version.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-20B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-20B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X100-20B |
| Bore size | Ø12 mm |
| Stroke | 100 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed bumper (both ends) |
| Max standard stroke | Up to 50 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ12X100-20B (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
Theoretical Output Force (Ø12mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 kgf |
ACPJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-20B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -20 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (double rod, adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-20B Is Used
Small-part ejection on assembly benches
The 80-100 mm adjustable extend range and 56.5 N push at 0.5 MPa eject finished micro-components from light nests without disturbing the fixture.
Slide gating on electronics test rigs
With the optional -S magnet and CMSE / DMSE switches, the 100 mm stroke (trimmable by 20 mm) indexes covers or shields at 30-500 mm/s with end-position feedback.
Sample pusher in lab automation
The short body, about 50% shorter in mounting length than an ISO 15552 profile cylinder, fits inside compact analyzer frames, while the male rod thread (B code) suits knuckle-linked sample trays.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-20B with the ACEJ12X100-20B
Compare both directions before committing: bore 16 pushes 100.5 N at 0.5 MPa for heavier clamps, while this 12 mm bore at 56.5 N push / 42.4 N pull suits light fixtures. The adjuster is a mechanical end stop for the extend stroke only - on air loss the piston still drifts, so do not rely on it to hold a load. FA/FB flange and LB foot mountings bolt to the standard face. If you need position sensing, order the -S variant to enable CMSE / DMSE switches. For new projects, specify the ACEJ12X100 instead, which matches this bore, stroke and force class.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X100-20B
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X100-20B FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa it pushes 79.2 N and pulls 59.4 N; theoretical maximum is 11.5 kgf at 1.0 MPa. The -20 code is a 20 mm adjustment window: a stop screw shortens the 100 mm extend stroke to any length from 80 to 100 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the port is M5x0.8. The 100 mm stroke is non-standard for bore 12 (standard maximum is 50 mm), so it is made to order.
It is a short-body compact cylinder with a hard-anodized aluminium body, S45C hard-chrome rod, and fixed TPU bumpers at both ends that only decelerate at the ends of travel - they never lock or hold a load. The body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange or LB foot mountings bolt to the standard face. This ACPJ model is discontinued; the current drop-in is ACEJ12X100 (same bore, stroke and force class). Confirm the ISO 21287 mounting dimensions before swapping, because the ACP follows the DIN standard.
Related AirTAC ACE Cylinders
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