This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B04-SAIJ80X200-100S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B04-SAIJ80X200-100S 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-SIJ Construction Machinery Special ISO Standard Cylinder B04-SIJ80X200-100S
The AirTAC Airtac B04-SIJ Construction Machinery Special ISO Standard Cylinder B04-SIJ80X200-100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B04-SAIJ80X200-100S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → B04-SAIJ80X200-100S
About the Airtac B04-SIJ Construction Machinery Special ISO Standard Cylinder B04-SIJ80X200-100S
The AirTAC B04-SIJ80X200-100S is a double-acting single-rod ISO 15552 adjustable-stroke cylinder where the leading B04- prefix marks it as the construction-machinery dedicated variant of the base SIJ80X200-100S, mechanically identical to the standard line. An external stop screw allows you to trim the extend stroke by up to 100 mm on-site, yielding a usable extend range of 100-200 mm from the 200 mm nominal maximum. The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 4523 N push at 0.9 MPa. It features a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable air cushions at each end. This SIJ series is discontinued and is fully replaced by the drop-in SAIJ80X200-100S, which retains the exact interface, bore, force, and porting.
The SAIJ replacement introduces an upgraded two-piece Y-shaped one-way piston seal for lower start-up pressure and longer life, and the broader SAI family adds lock variants (SAIL, BSAI) the SI line lacked. For sizing, the computed safe working load is roughly 1508 N (60% of the 2513 N push at 0.5 MPa), translating to a vertical lift capacity of about 128 kg with a 2:1 safety margin. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). Remember the stop screw sets the end position but is not a load lock; cylinders drift on air loss, so use an external rod lock for held loads.
Airtac B04-SIJ Construction Machinery Special ISO Standard Cylinder B04-SIJ80X200-100S Technical Specifications
| Model | Airtac B04-SIJ Construction Machinery Special ISO Standard Cylinder B04-SIJ80X200-100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAIJ80X200-100S |
| Bore size | Ø80 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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-SAIJ80X200-100S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The B04-SAIJ80X200-100S 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-SIJ Construction Machinery Special ISO Standard Cylinder B04-SIJ80X200-100S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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-SIJ Construction Machinery Special ISO Standard Cylinder B04-SIJ80X200-100S Is Used
Excavator Arm Positioning
Field-tunes the extension of auxiliary actuation links on heavy equipment, using the 100 mm adjust window to dial in the exact reach without swapping the cylinder.
Crane Outrigger Deployment
Provides adjustable end-position stopping for outrigger mechanisms, allowing on-site stroke trimming to accommodate uneven ground clearance requirements.
Concrete Pump Triggering
Sets precise actuation points for valve triggers on concrete pumping machinery, trimming the extend stroke by up to 100 mm to match field discharge rates.
Replacing the Airtac B04-SIJ Construction Machinery Special ISO Standard Cylinder B04-SIJ80X200-100S with the B04-SAIJ80X200-100S
To replace the discontinued B04-SIJ80X200-100S, order the drop-in SAIJ80X200-100S, reusing your existing ISO 15552 FA, LB, or TC mounting hardware without modification. When sizing both ways, the neighboring 63 mm bore yields 2182 N push at 0.7 MPa, while the 100 mm bore yields 5497 N push at 0.7 MPa; this 80 mm bore provides 3518 N push at 0.7 MPa. The 100 mm adjust window is ideal for field-tuning the extend stroke between 100 and 200 mm without machining. For strokes of 300 mm or longer, carefully manage side-load forces to prevent rod binding. The -S magnet supports legacy CS1-B/DS1-B sensors, while the SAIJ accepts current AirTAC switches. Because the stop screw is not a lock, specify a SAIL or BSAI lock variant if the construction machinery requires load holding on air loss.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAIJ80X200-100S
- ✓ 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-SIJ Construction Machinery Special ISO Standard Cylinder B04-SIJ80X200-100S FAQ
Yes, the B04-SIJ80X200-100S (the construction-machinery dedicated variant of SIJ80X200-100S) is discontinued. The exact drop-in replacement is the SAIJ80X200-100S. It shares the identical ISO 15552 interface, 80 mm bore, 200 mm stroke, 100 mm adjust window, G3/8 port, and mounting options. The SAIJ upgrades the piston seal to a two-piece Y-shaped one-way element for longer life.
The 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and 4523 N push at 0.9 MPa (theoretical max 513 kgf at 1.0 MPa). The external stop screw provides a 100 mm adjust window, allowing you to trim the extend stroke from the 200 mm nominal maximum down to 100 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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