Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X200-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X200-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke200 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM12×1.25
- 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 MACJ40X200-40S
Changeovers get easier with a 40 mm window: the extend stroke of this MACJ can be re-mapped across several product heights on the same machine without re-plumbing a single fitting. The bore 40 package pushes 628.3 N at 0.5 MPa and 879.6 N at 0.7 MPa, and variable cushions at both ends let heavier payloads settle instead of hammering the covers.
Construction stays true to the MA recipe - a stainless round barrel, a 20 um hard-chrome carbon-steel rod, and aluminium covers rolled on with a stainless block for a riveted, airtight body that copes with damp workshops and outdoor cells. On paper the rod can lift about 64 kg vertically at 0.5 MPa; plan on 32 kg for real lifting work and you keep a margin that survives pressure dips. A CMSG, DMSG or EMSG sensor clips straight on thanks to the standard built-in magnet.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X200-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X200-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 500 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MACJ40X200-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | 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 MACJ40X200-40S Is Used
Spray nozzle Z-lift
Lifts a paint or coating nozzle between passes inside a spray booth; stainless construction shrugs off overspray and periodic solvent wipes.
Pallet stop at transfer
Stops arriving pallets at a transfer station; 628.3 N at 0.5 MPa plus the end cushion takes the harshness out of every arrival.
Changeover re-positioner
Lets one machine serve several product heights: turn the stop screw within the 40 mm window at changeover instead of re-plumbing or swapping cylinders.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X200-40S the Right Cylinder?
Need less force? Bore 32 offers 402.2 N at 0.5 MPa. Need more? Bore 50 pushes 981.3 N. Between them, this unit's 628.3 N suits mid-weight tooling on 200 mm strokes. Bolt it down with the FA flange or LB foot; I and Y knuckles adapt the rod end. Treat the 40 mm adjustment strictly as a stroke stop - it never locks the piston, which will drift if air is lost, so verify position with the built-in magnet and a sensor and block the air with a valve for safety. Guide any side load separately rather than loading the rod.
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 MACJ40X200-40S FAQ
At 0.5 MPa the MACJ40X200-40S pushes 628.3 N and pulls 527.8 N; at 0.7 MPa that becomes 879.6 N push and 738.9 N pull; the theoretical maximum is 128.1 kgf at 1.0 MPa. Proof pressure is 1.5 MPa (215 psi).
Choose the FA flange for face mounting, the LB foot for base mounting, and I or Y rod knuckles where the linkage pivots. The built-in magnet is standard equipment, so CMSG, DMSG and EMSG switches detect position without special orders. The 40 mm stop screw sets the extend end position only - it is not a brake, and the rod will drift if air is lost.
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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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