This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ASE50X25B, 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 ASP50X25B
The AirTAC ASP Single Acting Guided Compact Cylinder ASP50X25B is a single acting, push (spring return) DIN-standard tight/compact air cylinder with a Ø50mm bore and 25mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ASE50X25B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke25 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM10×1.5
- StatusDiscontinued → ASE50X25B
- 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 ASP50X25B
The ASP50X25B is a single acting push cylinder with spring return: air extends the 16 mm rod and the internal spring retracts it, so only one air line is needed. At 0.5 MPa it delivers 875.5 N of push force net of the spring (1268.2 N at 0.7 MPa), and it starts working from just 0.2 MPa. Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight clamping fixtures and guarded stations. Note this model is discontinued - the current-production replacement is the ASE50X25.
The male rod thread (B code) takes an external knuckle directly, the fixed TPU bumper at both ends absorbs end-of-travel shock, and the 1/8" port keeps plumbing compact. If you need position sensing, order the -S variant, which carries the optional magnet for CMSE / DMSE switches; this version without the S code has no magnet fitted.
Airtac ASP Single Acting Guided Compact Cylinder ASP50X25B Technical Specifications
| Model | Airtac ASP Single Acting Guided Compact Cylinder ASP50X25B |
|---|---|
| Series | ASP DIN compact cylinder (discontinued) |
| Replacement | ASE50X25B |
| Bore size | Ø50 mm |
| Stroke | 25 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 ASE50X25B (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 ASP50X25B
| ASP | DIN compact cylinder (single-acting push, spring-return, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 ASP50X25B Is Used
Stamping press part ejection
The 875.5 N push at 0.5 MPa ejects finished stampings from a die nest on the extend stroke, and the spring retracts the platen automatically when the valve vents - no second solenoid valve needed.
Bushing press-fit station
With about 525 N of usable working force, the 50 mm bore presses small bushings into housings on an assembly line; the male rod thread (B code) accepts a press ram or knuckle directly.
Packaging machine hold-down
Air extends the hold-down pad onto cartons at the glue station, and the return spring lifts it clear on air loss, so the station fails to a safe open position during an emergency stop.
Replacing the Airtac ASP Single Acting Guided Compact Cylinder ASP50X25B with the ASE50X25B
Size by force first: at 0.5 MPa the 50 mm bore gives 875.5 N net push, while a 40 mm bore gives 556.8 N and a 63 mm bore gives 1420.5 N - step up if your tooling needs more than about 525 N of working force. Remember the spring returns the rod to its retracted home on air loss, so it will not hold a mid-stroke position under load. Mounting options are FA/FB flange, LB foot and CA/CB clevis; add the -S code if CMSE / DMSE switch sensing is required. Since the ASP is discontinued, order the ASE50X25 as the direct successor and confirm the ISO 21287 mounting dimensions before swapping.
Replacement checklist
- ✓ Current-production ACE → ASE50X25B
- ✓ 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 ASP50X25B FAQ
Push force is 875.5 N at 0.5 MPa and 1268.2 N at 0.7 MPa, both already net of the return spring. It is a single acting push, spring-return cylinder with a 50 mm bore, 25 mm stroke, 16 mm rod, 1/8" port and male rod thread (B code). Operating pressure is 0.2-1.0 MPa (28-145 psi), proof pressure 1.5 MPa (215 psi), speed 50-500 mm/s, temperature -20 to +70 C, and the fluid must be air filtered to 40 um. The model is discontinued; the ASE50X25 is the current replacement.
It uses a hard-anodized aluminium body with an S45C hard-chrome rod and a fixed TPU bumper at both ends to soften end-of-travel. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange, LB foot and CA/CB clevis brackets bolt straight to it. Switches are possible only on the -S variant: ordering the optional -S magnet lets CMSE or DMSE reed or solid-state switches sense position; this standard code has no magnet, so confirm the -S option when ordering.
Request a Quote for the ASE50X25B
Send us the quantity and destination. We confirm price, stock and lead time on the ASE50X25B replacement — usually within 7-8 hours.