This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAID100X100S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAID100X100S in place of this model. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.

The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAID100X100S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC B04-SID100X100S is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix marks it as the construction-machinery dedicated variant of the base SID100X100S. Mechanically identical to the standard line, a rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal both ways (3681 N @0.5 MPa). It features a 100mm bore, G1/2 port, M20x1.5 rod thread, and 36mm adjustable air cushions. This SID model is discontinued; the exact drop-in replacement is the SAID100X100S, sharing the same ISO 15552 interface, bore, stroke, and mounting.
The SAID upgrade introduces an upgraded piston seal using two Y-shaped one-way elements for low start-up pressure and long life. For design gains, the double-rod architecture prevents piston rotation and allows the back rod to drive a second tool or carry a sensor cam. Computed buyer insight: safe working load is ~2209 N (60% of the 3681 N @0.5 MPa force), yielding a vertical lift capacity of ~188 kg with a 2:1 margin. Note that air cushions only decelerate; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID100X100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID100X100S |
| Bore size | Ø100 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B04-SAID100X100S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The B04-SAID100X100S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Uses the equal both-ways force and anti-rotation properties to actuate heavy-equipment covers or doors where stable push and pull motions are equally critical.
Employs the rear rod to drive a secondary diverter arm while the front rod shifts material, leveraging the double-rod design to run two tools from one cylinder.
Provides a safe working load of ~2209 N for vertical lift tasks in construction machinery, using the back rod to mount a sensor cam for stroke feedback.
To replace the discontinued B04-SID100X100S, specify the SAID100X100S—a drop-in upgrade retaining the ISO 15552 mounting interface, G1/2 port, and 36mm cushions. Size both ways by checking neighbour bores (80mm or 125mm) if you need to adjust the equal both-ways force. Choose a double-rod cylinder when anti-rotation or synchronized two-tool drive is required. Mounting options include Basic, FA, LB, and TC. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches. For this 100mm stroke, side-load is minimal, but for strokes >=300mm ensure guide alignment to prevent binding.
Replacement checklist
Yes, the B04-SID100X100S (construction-machinery dedicated variant of SID100X100S) is discontinued. The exact drop-in replacement is the SAID100X100S. It shares the same ISO 15552 interface, bore, stroke, force, and G1/2 port, but adds an upgraded piston seal.
Force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. Speed is 30-800 mm/s. It uses a G1/2 port and 36mm adjustable cushions. It does not hold loads on air loss; use an external rod lock for held loads.
Send us the quantity and destination. We confirm price, stock and lead time on the B04-SAID100X100S replacement — usually within 7-8 hours.