This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ASE50X20, 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 ASP Single Acting Guided Compact Cylinder ASP50X20
The AirTAC ASP Single Acting Guided Compact Cylinder ASP50X20 is a single acting, push (spring return) DIN-standard tight/compact air cylinder with a Ø50mm bore and 20mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ASE50X20 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke20 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM10×1.5
- StatusDiscontinued → ASE50X20
- 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 ASP Single Acting Guided Compact Cylinder ASP50X20
The ASP50X20 is a single acting push cylinder with spring return: air extends the 16 mm rod and the internal spring retracts it, so one air line is enough and the rod sits retracted whenever pressure drops. At the 50 mm bore it delivers 875.5 N of push at 0.5 MPa (1268.2 N at 0.7 MPa), already net of the spring, and it needs at least 0.2 MPa to overcome the spring. Note that the ASP family is discontinued; the current-production successor is the ASE50X20 (swap the P for an E), so confirm ISO 21287 mounting dimensions before ordering.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs, guarding and gantry clamps. A fixed TPU bumper at both ends decelerates the rod, the hard-anodized aluminium body carries a 1/8" PT port, and the female M10x1.5 rod thread is standard. The optional -S magnet code enables CMSE / DMSE switches; without it no magnet is fitted.
Airtac ASP Single Acting Guided Compact Cylinder ASP50X20 Technical Specifications
| Model | Airtac ASP Single Acting Guided Compact Cylinder ASP50X20 |
|---|---|
| Series | ASP DIN compact cylinder (discontinued) |
| Replacement | ASE50X20 |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push (spring return) |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 500 mm/s |
| Cushion | Fixed bumper (both ends) |
| Max standard stroke | Up to 25 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ASE50X20 (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 (Ø50mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 875.5 N |
| 0.7 MPa | 1268.2 N |
Single-acting push: air extends the rod; the return spring retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac ASP Single Acting Guided Compact Cylinder ASP50X20
| ASP | DIN compact cylinder (single-acting push, spring-return, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| 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 ASP Single Acting Guided Compact Cylinder ASP50X20 Is Used
Press-fit of bushings
The 875.5 N push at 0.5 MPa seats small bushings or dowels in aluminium housings on a 20 mm advance, with the spring clearing the ram between cycles.
Jig clamping on a machining fixture
Clamps a machined bracket against a hard stop in a compact fixture where a full-length profile cylinder will not fit; about 525 N of usable hold keeps the part registered.
Carton hold-down on a packing line
Pushes a hold-down pad onto a 45 kg carton stack during taping; on air loss the spring lifts the pad clear so the box exits freely.
Replacing the Airtac ASP Single Acting Guided Compact Cylinder ASP50X20 with the ASE50X20
Size by force first: if 875.5 N at 0.5 MPa is marginal, step up to the 63 mm bore (1420.5 N); if it is generous, the 40 mm bore gives 556.8 N. Keep the 20 mm stroke within the short-travel range and remember the spring returns the rod on air loss - it will not hold a mid-stroke position. Match FA/FB flange, LB foot or CA/CB clevis mounts to your fixture, and order the -S code if CMSE / DMSE position switches are needed. For new designs, specify the ASE50X20 replacement and verify ISO 21287 dimensions.
Replacement checklist
- ✓ Current-production ACE → ASE50X20
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ASP Single Acting Guided Compact Cylinder ASP50X20 FAQ
Push is 875.5 N at 0.5 MPa and 1268.2 N at 0.7 MPa, both already net of the return spring. Minimum working pressure is 0.2 MPa, range 0.2-1.0 MPa (28-145 psi), proof 1.5 MPa (215 psi). Speed is 50-500 mm/s and the bore 50 port is 1/8" PT with an M10x1.5 female rod thread.
Sensing requires the optional -S magnet code; the plain ASP50X20 has no magnet, so CMSE or DMSE reed / solid-state switches only work on the -S version. The ASP family is discontinued - the current direct is the ASE50X20 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, and use FA/FB flange, LB foot or CA/CB clevis brackets on the same face.
Request a Quote for the ASE50X20
Send us the quantity and destination. We confirm price, stock and lead time on the ASE50X20 replacement — usually within 7-8 hours.