This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ASE20X20B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ASE20X20B 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 ASP20X20B
The AirTAC Airtac ASP Single Acting Guided Compact Cylinder ASP20X20B is a single acting, push (spring return) DIN-standard tight/compact air cylinder with a Ø20mm bore and 20mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ASE20X20B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeSingle acting, push (spring return)
- Rod threadM6×1.0
- StatusDiscontinued → ASE20X20B
About the Airtac ASP Single Acting Guided Compact Cylinder ASP20X20B
A single acting push cylinder with spring return, the ASP20X20B uses air to extend its 10 mm rod and an internal spring to retract it, so one air line is all the plumbing it needs. At 0.5 MPa it delivers 127.4 N of push already net of the spring, rising to 190.2 N at 0.7 MPa, and it needs at least 0.2 MPa to overcome the spring. The 20 mm stroke sits well inside the standard range for this bore.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim fixtures and guarded assemblies. In practice, plan on about 76 N of usable push at 0.5 MPa, which lifts roughly 6 kg vertically with a 2:1 margin. Note this model is discontinued: the current-production drop-in is the ASE20X20, so confirm ISO 21287 mounting dimensions before swapping. The male rod thread (B code) bolts to I/Y knuckles, and the fixed TPU bumper at both ends simply decelerates the rod.
Airtac ASP Single Acting Guided Compact Cylinder ASP20X20B Technical Specifications
| Model | Airtac ASP Single Acting Guided Compact Cylinder ASP20X20B |
|---|---|
| Series | ASP DIN compact cylinder (discontinued) |
| Replacement | ASE20X20B |
| Bore size | Ø20 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push (spring return) |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 ASE20X20B (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 (Ø20mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 127.4 N |
| 0.7 MPa | 190.2 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 ASP20X20B
| ASP | DIN compact cylinder (single-acting push, spring-return, discontinued). |
|---|---|
| 20 | 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 ASP20X20B Is Used
Bottle-capping press head
The 127.4 N push at 0.5 MPa seats small screw caps on cosmetic bottles in a 20 mm press stroke, and the spring retracts the head the moment air is cut.
PCB fixture clamping
A male-threaded rod with an I/Y knuckle clamps circuit boards into a test nest; the compact body fits where a full-length profile cylinder would overhang the fixture.
Lab sample ejector
Ejects sample vials from an analyzer tray with about 6 kg of vertical lift capability, then the return spring clears the path for the next vial.
Replacing the Airtac ASP Single Acting Guided Compact Cylinder ASP20X20B with the ASE20X20B
Size up if 127.4 N at 0.5 MPa is marginal: the 25 mm bore pushes 210.1 N at the same pressure. Size down to the 16 mm bore (78.4 N) only for very light loads. Because the spring retracts the rod to its home position on air loss, this cylinder cannot hold a mid-stroke position. If you need position sensing, order the -S code to add the optional magnet for CMSE / DMSE switches; this version has no magnet. For new designs, specify the ASE20X20 instead and verify the ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ASE20X20B
- ✓ 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 ASP20X20B FAQ
Push is 127.4 N at 0.5 MPa and 190.2 N at 0.7 MPa, both already net of the return spring. Bore 20 mm, stroke 20 mm, rod 10 mm with a male thread, M5x0.8 port, operating pressure 0.2-1.0 MPa (28-145 psi), proof 1.5 MPa (215 psi), speed 50-500 mm/s, temperature -20 to +70 C, air filtered to 40 um. The model is discontinued; the ASE20X20 is the current replacement.
The hard-anodized aluminium body follows the ISO 21287 compact format, saving about 50% of the mounting length of an ISO 15552 profile cylinder. A fixed TPU bumper at each end decelerates the rod at the ends of travel only; it never locks or holds a load, and on air loss the spring simply returns the rod home.
Request a Quote for the ASE20X20B
Send us the quantity and destination. We confirm price, stock and lead time on the ASE20X20B replacement — usually within 7-8 hours.