This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ASE40X20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ASE40X20 in place of this model. 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 ASP40X20
The AirTAC Airtac ASP Single Acting Guided Compact Cylinder ASP40X20 is a single acting, push (spring return) DIN-standard tight/compact air cylinder with a Ø40mm bore and 20mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ASE40X20 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ40 mm
- Stroke20 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- StatusDiscontinued → ASE40X20
About the Airtac ASP Single Acting Guided Compact Cylinder ASP40X20
This is a single acting push cylinder with spring return: air extends the 12 mm rod and the internal spring retracts it, so only one air line is needed and the rod sits retracted whenever pressure drops below 0.2 MPa. At 0.5 MPa the 40 mm bore delivers 556.8 N of push force net of the spring, rising to 808.1 N at 0.7 MPa. The body is a hard-anodized aluminium compact build whose short form saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and guarding where a full-length body cannot.
For sizing, treat roughly 334 N (about 60% of the 0.5 MPa rating) as the force available for real work, which corresponds to lifting around 28 kg vertically with a 2:1 margin. The rod end carries a female M8x1.25 thread and the air port is 1/8". Note that the ASP family is discontinued; the current-production successor is the ASE40X20 in the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping.
Airtac ASP Single Acting Guided Compact Cylinder ASP40X20 Technical Specifications
| Model | Airtac ASP Single Acting Guided Compact Cylinder ASP40X20 |
|---|---|
| Series | ASP DIN compact cylinder (discontinued) |
| Replacement | ASE40X20 |
| Bore size | Ø40 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push (spring return) |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 ASE40X20 (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 (Ø40mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 556.8 N |
| 0.7 MPa | 808.1 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 ASP40X20
| ASP | DIN compact cylinder (single-acting push, spring-return, discontinued). |
|---|---|
| 40 | 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 (adjustable stroke).
Where the Airtac ASP Single Acting Guided Compact Cylinder ASP40X20 Is Used
Bottle capping press
The 556.8 N push at 0.5 MPa seats caps on 500 ml beverage bottles in a compact filling head, and the spring retracts the plunger the moment the air valve closes.
PCB test fixture clamp
A 20 mm stroke is enough to swing a spring-loaded hold-down over a circuit board in an in-circuit test rig, with the short body fitting inside the fixture lid.
Carton kick-off ejector
Mounted on a packaging conveyor, the rod kicks small cartons off the line at up to 500 mm/s, and the return spring clears the belt automatically between cycles.
Replacing the Airtac ASP Single Acting Guided Compact Cylinder ASP40X20 with the ASE40X20
Compare against neighbours before ordering: the ASP32X20 gives 352.5 N at 0.5 MPa if your load is lighter, while the ASP50X20 raises the figure to 875.5 N for heavier clamping. Remember the spring drives the rod home on air loss, so this unit will not hold a mid-stroke position. Mounting brackets from the FA/FB flange, LB foot and CA/CB clevis family bolt to the standard face, and if you need position sensing you must order the -S code to fit the optional magnet for CMSE / DMSE switches - without it no magnet is fitted. For new projects specify the ASE40X20, the drop-in replacement for this discontinued model.
Replacement checklist
- ✓ Current-production ACE → ASE40X20
- ✓ 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 ASP40X20 FAQ
Push force is 556.8 N at 0.5 MPa and 808.1 N at 0.7 MPa, both already net of the return spring. The spring needs at least 0.2 MPa (28-145 psi operating range) to be overcome. A practical rule is to plan for about 334 N of usable force at 0.5 MPa, roughly 28 kg of vertical lift with a 2:1 margin. Speed range is 50-500 mm/s and the 1/8" port takes a single air line.
No - the ASP40X20 is discontinued. The current-production replacement is the ASE40X20 (swap the P for an E), a drop-in successor in the same 40 mm bore, 20 mm stroke and force class. Because the ASP is DIN-standard, confirm the ISO 21287 mounting dimensions of the ASE before swapping. Both ends carry a fixed TPU bumper, and the optional -S magnet code enables CMSE / DMSE switches.
Request a Quote for the ASE40X20
Send us the quantity and destination. We confirm price, stock and lead time on the ASE40X20 replacement — usually within 7-8 hours.