Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 100mm stroke, 1/8" 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.
- BoreØ25 mm
- Stroke100 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S
A 30 mm adjust window on the extend stroke is what sets the MACJ25X100-30S apart: the rod stop point can be re-trimmed on the machine without touching a single mount. It is double-acting with a variable cushion at each end, and its 25 mm bore delivers 245.3 N of push and 206.1 N of pull at 0.5 MPa over a 0.15-1.0 MPa (22-145 psi) operating range.
Counting the raw 245.3 N, the piston theoretically lifts about 25 kg vertically; halve that to roughly 12 kg if you want a 2:1 margin on a real payload. The riveted stainless round body shrugs off damp shop air, and both-end cushioning lets you tune end-of-stroke shock out of the 30-800 mm/s speed band.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×100 | 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S Is Used
Carton flap tucker
Folds top flaps on a case-packing station; the 30 mm window absorbs carton height tolerance without re-mounting the cylinder.
Drilling jig retract stop
Sets spindle withdraw distance on a light drilling jig so bushing clearance stays constant across different jig sets.
Feeder probe depth
Positions a presence-check probe into a vibratory bowl track; trimming extend travel stops the probe fouling passing parts.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S the Right Cylinder?
Check the neighbours first: bore 20 moves about 157 N at 0.5 MPa and bore 32 manages 402.2 N, so this 25 mm unit sits squarely between at 245.3 N. If the process needs a load held when air drops, treat the adjuster purely as an extend-side end stop - it is not a lock and the rod will creep under load once pressure is gone.
Choose FA flange or LB foot mounting, add I or Y knuckles on the rod side, and note that adjustable-stroke models omit the SDB option. Every cylinder leaves the factory magnetised, so CMSG, DMSG and EMSG switches fit without any special-order piston.
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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S FAQ
Rated figures for the 25 mm bore: 245.3 N push and 206.1 N pull at 0.5 MPa, climbing to 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum of 50.0 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi) and expect usable speeds of 30-800 mm/s.
No. The magnet is built into the piston as standard on the MA series, so CMSG, DMSG or EMSG switches mount directly on the stainless barrel anywhere along the 100 mm stroke and 30 mm adjust window.
Authorized Export Seller
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.
Related AirTAC MACJ Cylinders
Request a Quote for Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.