This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE20X5SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE20X5SB 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.

The AirTAC Airtac ATP Single Acting Port Compact Cylinder ATP20X5SB is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø20mm bore and 5mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE20X5SB (ISO 21287 ACE), in the same bore, stroke and force class.
The ATP20X5SB is a single acting pull cylinder of DIN-standard compact build: a spring extends the rod and compressed air retracts it, so the assembly rests normally extended and fails to the extended position when air is lost. In the 20 mm bore the spring-subtracted pull is 88.1 N at 0.5 MPa and 135.2 N at 0.7 MPa, with a minimum working pressure of 0.2 MPa needed to overcome the spring. The B code gives a male rod thread on the 10 mm rod, and the S code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted on the body.
The hard-anodized aluminium body with S45C hard-chrome rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why this family slots into tight jigs and guarding where a full-length body will not go. A fixed TPU bumper at each end decelerates the moving parts. For sizing, plan on roughly 53 N of usable pull at 0.5 MPa (about 60% of the rating), which lifts about 4 kg vertically with a 2:1 margin. Note that this model is discontinued: the current-production drop-in is the ATE20X5, and you should confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP20X5SB |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE20X5SB |
| Bore size | Ø20 mm |
| Stroke | 5 mm |
| Acting type | Single acting, pull (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 ATE20X5SB (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.
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 88.1 N |
| 0.7 MPa | 135.2 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
| ATP | DIN compact cylinder (single-acting pull, spring-return, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×5 | 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).
On a small packaging machine, the spring holds a gate open and the 88.1 N air pull at 0.5 MPa retracts it for a 5 mm indexing step.
With the fitted -S magnet driving a CMSE switch, a jig builder confirms the 10 mm rod is retracted before a CNC pallet clamps.
A lab automation arm uses the short body to lift about 4 kg of vial rack vertically, with the spring returning the rack home on air loss.
Work the 5 mm stroke class from both sides: the 16 mm bore gives 53.3 N pull at 0.5 MPa if your clamp or return load is lighter, while the 25 mm bore delivers 170.9 N when you need more margin. Because the spring only returns the rod to its extended home position, this cylinder will not hold a mid-stroke position on air loss. The male rod thread suits I or Y rod knuckles, and FA/FB flange, LB foot or CA/CB clevis mounts bolt to the same face. Order the ATE20X5 as the current replacement and verify ISO 21287 dimensions before the swap.
Replacement checklist
This single acting pull cylinder gives 88.1 N at 0.5 MPa and 135.2 N at 0.7 MPa, both net of the return spring. Working 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 M5x0.8 port takes air filtered to 40 um. At least 0.2 MPa is required to beat the spring.
The hard-anodized aluminium body is a short ISO 21287-class build that saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each end. The ATP20X5SB is discontinued; the current-production replacement is the ATE20X5 in the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ATE20X5SB replacement — usually within 7-8 hours.