Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X80-40S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X80-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 80mm stroke, M5×0.8 air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ16 mm
- Stroke80 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- CushionFixed anti-impact bumper pads
- 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X80-40S
When a fixture gets re-tooled, the 40 mm trim window on this 16 mm bore barrel absorbs the change: an external stop screw shortens the 80 mm extend stroke to any position inside that range. Air works in both directions (double-acting), giving 100.5 N forward and 86.4 N return at 0.5 MPa and 140.7 N forward at 0.7 MPa against a 20.5 kgf theoretical peak. Sized with margin, that is near 60 N of dependable work per cycle at 0.5 MPa.
A 6 mm hard-chrome plated carbon-steel rod runs in a stainless-steel tube that the aluminium covers are rolled onto, so the joint is sealed and the body stays slim in tight machines. Stroke-end deceleration comes from fixed bumper pads - cushion adjustment belongs to the MAC family, not here. The piston magnet is fitted as standard, CMSG / DMSG / EMSG switches read position without modification, and the M5x0.8 ports accept 0.15-1.0 MPa (22-145 psi) air at speeds of 30-800 mm/s.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X80-40S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X80-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 80 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed anti-impact bumper pads |
| 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X80-40S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×80 | 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X80-40S Is Used
Escapement drop on a pill counting bench
Releasing one blister card at a time takes little force; 100.5 N at 0.5 MPa is ample, and the 40 mm window lets the escapement sit deeper as card formats change.
Lane gate on a small parts ASRS shelf
The stainless barrel tolerates the humid storage hall, while the built-in magnet and a DMSG switch confirm the gate is fully parked before the shuttle moves.
Clamp nib on a PCB depaneling fixture
A light 60 N-class squeeze holds the board edge during routing; the hard-chrome rod resists flux residue and the fixed bumper quiets each 80 mm cycle.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X80-40S the Right Cylinder?
There is no smaller bore in the family, so size down-check by load: at 0.5 MPa this unit pushes 100.5 N, while a 20 mm MAJ offers 157.0 N if trays get heavier. FA flange and LB foot mounts, plus I and Y rod knuckles, cover most fixture styles. Note that the stop screw only pins the extend end - under a hanging or spring load the piston can still creep if supply pressure drops, so add a separate holding valve where that matters.
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 Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X80-40S FAQ
Expect 100.5 N extend and 86.4 N retract at 0.5 MPa, or 140.7 N extend and 120.9 N retract at 0.7 MPa. The theoretical maximum is 20.5 kgf at 1.0 MPa; treat roughly 60 N as your working push once margins are applied.
Fixed anti-impact bumper pads in both covers decelerate the piston at each end of the 80 mm travel. They are not adjustable air cushions - for speed-dependent cushioning, step up to the MACJ family.
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.
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