Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 400mm 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
- Stroke400 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 MAJ16X400-20S
With a 400 mm stroke packed into Dia 16 format, the AirTAC MAJ16X400-20S delivers a 100.5 N push at 0.5 MPa from a round stainless barrel. The extend stroke is adjustable: an external stop screw trims it anywhere within the ordered 20 mm window, letting one cylinder serve several stop positions on a long transfer run. Because 400 mm exceeds the 300 mm standard maximum for a 16 mm bore, AirTAC machines this stroke to order.
The body is riveted, not bolted: a stainless-steel tube carries the 6 mm hard-chrome plated (20 um) rod, with aluminium covers rolled on for a sealed, compact envelope that shrugs off washdown splash better than painted-steel minis. In practice, plan around 60 N of usable force from the 100.5 N rating - the same 2:1 margin means it lifts about 5 kg vertically. A magnet is built in as standard, so CMSG, DMSG or EMSG switches clip on without a special piston. Speed spans 30-800 mm/s across a 0.15-1.0 MPa (22-145 psi) supply.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 400 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 MAJ16X400-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -20 | 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 MAJ16X400-20S Is Used
Bakery tray pusher
Nudging misaligned biscuit trays off a 400 mm-wide transfer section; 100.5 N at 0.5 MPa handles light trays easily, and the 20 mm window trims the push-off point without re-plumbing.
Lab sample indexer
Advancing sample vials into an analyzer station in one smooth reach; M5x0.8 ports suit compact manifolds and a CMSG switch confirms each extension.
CNC splash-guard slide
Driving a coolant-guard cover over a small machining centre; the riveted stainless barrel tolerates coolant mist where painted mini cylinders corrode.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-20S the Right Cylinder?
Bore 16 is the smallest in the MA range, so if 100.5 N at 0.5 MPa feels light, step up to bore 20 (157 N push) or bore 25 (245.3 N) on the same adjustable-stroke format. On a 400 mm stroke keep side loads off the 6 mm rod - guide the payload externally or expect rod bending and accelerated seal wear. FA flange or LB foot mounting stabilises the long body, and the standard magnet pairs with CMSG or DMSG switching for end-position feedback.
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 MAJ16X400-20S FAQ
At 0.5 MPa it pushes 100.5 N and pulls 86.4 N; at 0.7 MPa those rise to 140.7 N and 120.9 N, with a theoretical maximum of 20.5 kgf at 1.0 MPa. Supply pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and travel speed 30-800 mm/s.
The riveted stainless tube with a 20 um hard-chrome plated 6 mm rod resists washdown splash and outdoor damp far better than painted-steel mini cylinders, while the round body keeps the envelope compact. Fixed bumper pads soften stroke ends and the porting is M5x0.8 on each cover.
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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