This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAI100X195S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAI100X195S 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.
Airtac B04-SI Construction Machinery Special ISO Standard Cylinder B04-SI100X195S
The AirTAC Airtac B04-SI Construction Machinery Special ISO Standard Cylinder B04-SI100X195S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 195mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAI100X195S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke195 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAI100X195S
About the Airtac B04-SI Construction Machinery Special ISO Standard Cylinder B04-SI100X195S
The AirTAC B04-SI100X195S is a discontinued double-acting ISO 15552 profile cylinder. The B04- prefix marks it as the construction-machinery dedicated variant of the SI100X195S, mechanically identical to the base model with a 100mm bore and 195mm stroke. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100X195S.
The SAI drop-in maintains the exact ISO 15552 mounting interface, G1/2 port, and output force. It features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure, and the SAI family adds SAIL lock and BSAI clamp-lock variants the SI lacked. Safe working load is ~2356 N, allowing a vertical lift of ~200 kg with a 2:1 margin.
Airtac B04-SI Construction Machinery Special ISO Standard Cylinder B04-SI100X195S Technical Specifications
| Model | Airtac B04-SI Construction Machinery Special ISO Standard Cylinder B04-SI100X195S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAI100X195S |
| Bore size | Ø100 mm |
| Stroke | 195 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-SAI100X195S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| 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-SAI100X195S 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.
Model Code: Airtac B04-SI Construction Machinery Special ISO Standard Cylinder B04-SI100X195S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×195 | 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).
Where the Airtac B04-SI Construction Machinery Special ISO Standard Cylinder B04-SI100X195S Is Used
Excavator Actuation
Drives secondary auxiliary mechanisms on heavy excavation equipment where the B04- prefix indicates construction-machinery dedication.
Heavy Press Ejection
Provides robust 3927 N push force at 0.5 MPa to eject dense materials from forming presses in demanding industrial environments.
Loader Gate Control
Actuates heavy positioning gates and bulk material deflectors on loaders, utilizing the 195mm stroke for precise material routing.
Replacing the Airtac B04-SI Construction Machinery Special ISO Standard Cylinder B04-SI100X195S with the B04-SAI100X195S
To replace this cylinder, order the SAI100X195S. It drops directly into existing fixtures via the ISO 15552 mounting dimensions, matching the 100mm bore, 195mm stroke, G1/2 port, and M20x1.5 rod thread. Retain your mounting accessory (LB, FA, TC, etc.) and the -S magnet for CS1-B/DS1-B sensors. For sizing, neighboring bores offer different forces: an 80mm bore yields 2513 N push at 0.5 MPa, while a 125mm bore yields 6136 N. Note that a plain cylinder drifts without live air; for load holding on construction machinery, specify the SAIL or BSAI lock variant, or use an external pilot check valve. The 195mm stroke is under the 300mm side-load threshold, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAI100X195S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac B04-SI Construction Machinery Special ISO Standard Cylinder B04-SI100X195S FAQ
Yes, the B04-SI100X195S is discontinued. The exact drop-in replacement is the SAI100X195S. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 195mm stroke, G1/2 port, and mounting interface. The B04- prefix simply denotes the construction-machinery dedicated variant, and the SAI matches all physical specs.
The 100mm bore uses a G1/2 air port and an M20x1.5 rod thread. Force ratings are: 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
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