Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X50-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X50-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø16mm bore and 50mm stroke, M5×0.8 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.
- BoreØ16 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM6×1.0
- 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 MACJ16X50-40S
With a 40 mm trim window on a 50 mm base stroke, the MACJ16X50-40S lets maintenance teams re-gauge a stop by hand instead of swapping cylinders. It is double-acting with a variable cushion at both ends, pushing 100.5 N and pulling 86.4 N at 0.5 MPa from its 16 mm bore. Pressure runs 0.15-1.0 MPa (22-145 psi) with speeds of 30-800 mm/s.
Instead of a painted housing you get a rolled stainless barrel riveted to aluminium covers, plus a hard-chrome plated 6 mm rod - a combination that survives damp cells and periodic washdown. Position sensing needs no option code: the magnet ships fitted, ready for CMSG / DMSG / EMSG switches. Budget about 60 N of practical push at 0.5 MPa, which vertically lifts roughly 5 kg with a 2:1 safety factor.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X50-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X50-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 50 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 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 MACJ16X50-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 16 | Bore size in mm. |
| ×50 | 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 MACJ16X50-40S Is Used
Stop-gauge tuning on a leak-test rig
Operators wind the stop screw in by up to 40 mm when a new part variant needs a shallower probe depth, keeping one cylinder across the whole family.
Light press-fit on a bench cell
About 60 N of working force at 0.5 MPa seats small bushings into plastic housings, and both-end cushioning keeps the ram from knocking at stroke end.
Splash-zone gate on a bottling line
The stainless round barrel and chrome rod resist the rinse spray near fillers, where painted mini bodies would corrode within months.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X50-40S the Right Cylinder?
Between bores, 16 mm is the entry point - a 20 mm MACJ gives 157.0 N and a 25 mm unit 245.3 N at 0.5 MPa if the load grows. Treat the 40 mm adjuster as an extend-side stop only; it holds position against air, not against a falling load, so add a valve or external stop where drift matters. FA flange and LB foot plates, plus I and Y knuckles, cover the mounting; PT, G and NPT ports are on the menu.
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 MACJ16X50-40S FAQ
Rated 100.5 N push / 86.4 N pull at 0.5 MPa and 140.7 N push / 120.9 N pull at 0.7 MPa, with a 20.5 kgf theoretical ceiling at 1.0 MPa. The 16 mm bore carries a 6 mm rod and M5x0.8 ports; the 50 mm stroke trims by 40 mm; operating range 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
A variable air cushion at each end bleeds off deceleration energy, so you can push the rod toward 800 mm/s or carry near-maximum load without metal-to-metal impact on the covers. Turn the cushion screws until end-of-stroke knock disappears, then re-check after any pressure change.
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 MACJ16X50-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.