This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ASE20X20SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ASE20X20SB 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 ASP20X20SB
The AirTAC Airtac ASP Single Acting Guided Compact Cylinder ASP20X20SB 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 ASE20X20SB (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 → ASE20X20SB
About the Airtac ASP Single Acting Guided Compact Cylinder ASP20X20SB
A single acting push cylinder with spring return, the discontinued ASP20X20SB extends its 10 mm rod with air and retracts it on the built-in spring, so one air line is all the plumbing it needs. At the 20 mm bore this nets 127.4 N of push at 0.5 MPa and 190.2 N at 0.7 MPa, already after the spring has taken its share. The S code on this model means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke signalling.
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 cramped jigs and guarding where a full-length body will not go. In practice, plan on about 76 N of usable push at 0.5 MPa, which corresponds to lifting roughly 6 kg vertically with a 2:1 margin. A fixed TPU bumper sits at both ends, and the male rod thread (B code) takes standard rod knuckles directly. This model is discontinued; the current-production replacement is the ASE20X20, and buyers should confirm ISO 21287 mounting dimensions before swapping.
Airtac ASP Single Acting Guided Compact Cylinder ASP20X20SB Technical Specifications
| Model | Airtac ASP Single Acting Guided Compact Cylinder ASP20X20SB |
|---|---|
| Series | ASP DIN compact cylinder (discontinued) |
| Replacement | ASE20X20SB |
| 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 ASE20X20SB (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 ASP20X20SB
| 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 ASP20X20SB Is Used
PCB fixture clamping
The 127.4 N push at 0.5 MPa is enough to hold small circuit boards against a locating stop in an electronics test jig, and the spring retracts the 10 mm rod the instant air is removed.
Carton flap tuck-down
On a small packaging line, the 20 mm stroke presses a folded flap flat before taping, and the spring return clears the web without a second valve.
Presence-check pop-up pin
Because the -S magnet is fitted, a DMSE switch confirms the pin is extended when it rises to detect a machined part on a rotary indexing table.
Replacing the Airtac ASP Single Acting Guided Compact Cylinder ASP20X20SB with the ASE20X20SB
Size against neighbours: the 16 mm bore gives 78.4 N at 0.5 MPa while the 25 mm bore reaches 210.1 N, so the 20 mm sits squarely between them for light clamping and ejecting work. If the job needs more than about 76 N of real work at 0.5 MPa, step up a bore. Remember the spring drives the rod home on air loss, so this cylinder returns to the retracted position rather than holding a mid-stroke pose. Standard strokes for this bore run to 100 mm, so the 20 mm stroke here is a catalogue item. Match FA/FB flange, LB foot or CA/CB clevis brackets to the mounting face, and keep the -S magnet if CMSE/DMSE switching matters. Order the ASE20X20 as the current drop-in replacement.
Replacement checklist
- ✓ Current-production ACE → ASE20X20SB
- ✓ 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 ASP20X20SB FAQ
Net of the return spring, this 20 mm bore pushes 127.4 N at 0.5 MPa and 190.2 N at 0.7 MPa. It runs on air filtered to 40 um at 0.2-1.0 MPa (28-145 psi), with 0.2 MPa as the minimum to overcome the spring, and proof pressure of 1.5 MPa (215 psi). Speed range is 50-500 mm/s and temperature spans -20 to +70 C. The port is M5x0.8 and the rod end is a male thread.
Order the ASE20X20, the current-production single acting replacement made by swapping the P for an E. It matches the same 20 mm bore, 20 mm stroke and force class in the ISO 21287 compact family, but because the ASP was DIN-standard you should confirm the ISO 21287 mounting dimensions before swapping it into an existing fixture.
Related AirTAC ACE Cylinders
Request a Quote for the ASE20X20SB
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