Airtac B01-MACJ Special Cylinder B01-MACJ25X70-30S
The AirTAC Airtac B01-MACJ Special Cylinder B01-MACJ25X70-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø0mm bore and 70mm stroke, PT/G air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ0 mm
- Stroke70 mm
- Port sizePT/G
- Acting typeDouble acting, adjustable stroke + cushion
- Rod thread
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac B01-MACJ Special Cylinder B01-MACJ25X70-30S
Whether the cylinder is pushing, pulling or being trimmed by up to 30 mm in extend, the MACJ25X70-30S behaves like a much larger machine component: 343.4 N of push is on tap at 0.7 MPa, and 245.3 N at 0.5 MPa. The body is AirTAC's rolled stainless mini construction - barrel, covers and block swaged into one leak-tight unit with a hard-chrome plated 10 mm rod that ignores coolant splash and morning condensation.
Set your daily expectations at about 147 N of force, which translates to lifting roughly 12 kg vertically on a 2:1 margin, and let the variable cushions at both ends absorb whatever speed up to 800 mm/s you choose. A 20 um chrome layer, grease-holding piston seal and standard magnet round out the package. Supply: 0.15-1.0 MPa (22-145 psi).
Airtac B01-MACJ Special Cylinder B01-MACJ25X70-30S Technical Specifications
| Model | Airtac B01-MACJ Special Cylinder B01-MACJ25X70-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø0 mm |
| Stroke | 70 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | PT/G |
| Rod thread |
| 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 | Variable air cushion, both ends |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø0mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 0 N | 0 N |
| 0.7 MPa | 0 N | 0 N |
| Max (@1.0 MPa) | 0 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B01-MACJ Special Cylinder B01-MACJ25X70-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 0 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -30 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac B01-MACJ Special Cylinder B01-MACJ25X70-30S Is Used
Tray-lid hold-down
On a tray-sealing machine, padded plungers press lids before heat sealing; the 30 mm trim compensates for tray height differences between SKUs without mechanical shims.
PCB test fixture clamp
In-circuit test racks clamp boards with regulated low pressure - dialed well below the 245 N rating, the cylinder holds delicate fixtures without marking, and the magnet signals clamp-complete to the tester.
Tube end-forming anvil
A small tube-crimping station uses the 70 mm stroke to advance an anvil, trimmed by 30 mm so different tube diameters share one actuator, with cushions preventing metal-to-metal slam at the seat.
Is the Airtac B01-MACJ Special Cylinder B01-MACJ25X70-30S the Right Cylinder?
Sizing neighbors: bore 20 manages 157 N at 0.5 MPa and suits light indexing, while bore 32 provides 402.2 N for stiffer presses - choose this 25 mm model when loads sit in between or space is tight. Remember the -30 adjuster trims the extend stroke only and is not a load brake; a sudden loss of air still lets the rod fall or drift. FA flange and LB foot brackets, or I and Y knuckles on the M10x1.25 rod thread, handle most machine interfaces, and the built-in magnet accepts CMSG / DMSG / EMSG switches out of the box.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac B01-MACJ Special Cylinder B01-MACJ25X70-30S FAQ
At 0.5 MPa: 245.3 N push, 206.1 N pull. At 0.7 MPa: 343.4 N push, 288.5 N pull. Theoretical maximum at 1.0 MPa is about 50 kgf. Working pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), media air filtered to 40 um, speed 30-800 mm/s.
The external stop screw sets any extend length within the ordered 30 mm window below the full 70 mm stroke; it shortens travel, never extends it. Treat it as a position stop, not a brake - without air the piston still moves, so add a separate clamp for load holding. A variable air cushion at both ends handles the deceleration profile.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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