Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X200-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X200-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 200mm 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
- Stroke200 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 MACJ25X200-40S
For a fixture needing both reach and a fine end position, this MACJ pairs 200 mm of stroke with a 40 mm adjustable window on the extend side. Thrust at 0.5 MPa is 245.3 N out and 206.1 N in; at 0.7 MPa the numbers climb to 343.4 N and 288.5 N. Dual variable cushions tame end-of-stroke shock so you can run toward the 800 mm/s top speed with heavier tooling.
The stainless round barrel plus a 20 um hard-chrome rod stands up to splashes and washdown that corrode painted-steel minis. Budget about 147 N of usable force at 0.5 MPa rather than the full 245.3 N, which is roughly a 12 kg vertical lift with margin. Every unit carries its magnet as standard equipment for CMSG / DMSG / EMSG position switches, and operating pressure spans 0.15-1.0 MPa (22-145 psi).
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X200-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X200-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 200 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 MACJ25X200-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×200 | Stroke length in mm. |
| -40 | 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 MACJ25X200-40S Is Used
AGV lift mast pin
Extends the locking pin on a small AGV lift mast; the roughly 12 kg vertical lift figure with a 2:1 margin comfortably covers pin and linkage loads.
Ultrasonic weld lid hold
Holds tray lids closed during an ultrasonic welding cycle; the 40 mm trim window fixes the exact clamp depth for repeatable welds across mold changes.
Tube-bend feed pusher
Feeds tube blanks into a bending jig; the 200 mm stroke covers the full feed length and the chromed rod resists the coolant splash around the bend head.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X200-40S the Right Cylinder?
Boundary check against the family: 20 mm bore gives 157 N push at 0.5 MPa, 32 mm bore gives 402.2 N, and this 25 mm bore sits between at 245.3 N. Rig it FA-flanged or on LB feet; I and Y knuckles suit swinging tooling (SDB is not offered on adjustable versions). Do not rely on the trim stop to hold a load - pressure loss means drift - and on a 200 mm stroke use external guiding to protect the 10 mm rod from bending.
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 MACJ25X200-40S FAQ
245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, and a 50 kgf theoretical ceiling at 1.0 MPa. Rated speed spans 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) shop air.
No. The adjuster is a stop screw that only shortens the extend stroke, within 40 mm of the ordered 200 mm. It is also not a load-holding device: if air pressure is lost the piston can drift, so use a locking or pilot-checked valve for suspended loads.
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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.
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Most inquiries answered within 7-8 hours.
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