Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 200mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 160–200mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke200 mm
- Adjustable160–200 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40
The AirTAC MBLCJ20X200-40 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 157 N push and 132 N pull force at 0.5 MPa. The rear stopper allows you to trim up to 40 mm of travel, creating a precise 160 to 200 mm usable stroke window for exact end-positioning. A G1/8 port and an Ø8 hard-chrome plated carbon-steel rod handle the pneumatic flow. This SKU lacks a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable air cushions to decelerate the rod near each end cover, absorbing kinetic energy from longer 200 mm runs. The riveted rolling-packed aluminum barrel and heterogeneous two-way grease-retaining piston seal prevent lubricant washout during high-speed 30 to 800 mm/s cycles. Remember the rear adjuster is a travel stop, not a mechanical lock; it sets the end point but does not hold the load in place without live air pressure.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 200 mm |
| Adjustable window | 160–200 mm (trim 40 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×200 | Nominal stroke length in mm. |
| -40 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40 Is Used
PCB Shuttle Gate
Tunes the 160-200 mm travel window to act as a precise diverter gate on SMT conveyor lines, using the 157 N push force to route boards without overshooting.
Label Applicator Platen
Adjusts the rear stopper to set exact label press depth, while the tunable air cushion prevents the 200 mm stroke from slamming and tearing web materials.
Light-Part Ejector
Pushes small plastic moldings out of a machining fixture, relying on the 132 N pull force for retraction and the compact riveted body to fit tight cell enclosures.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40 the Right Cylinder?
With a 20 mm bore generating 157 N of push force at 0.5 MPa, stepping down is not an option as this is the smallest available size. If your application requires more force, the 25 mm bore provides 245 N push at 0.5 MPa. Choose the MBLCJ over the MBLJ when your moving mass demands tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC if you need to fine-tune the travel end-point. The overall length equals A + 2 x stroke + adjust, meaning the 40 mm trim adds to the total footprint. Mounting is limited to Basic, FA flange, or LB foot styles; there is no SDB pivot or back-cover option. For an exact replacement, match the 20 mm bore, 200 mm stroke, 40 mm adjust code, G1/8 PT thread, and confirm no magnet is required. Because the stroke is 200 mm, the small Ø8 rod is susceptible to bending under side loads—always guide the load externally to prevent seal failure.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40 FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N push and 132 N pull force. At 0.7 MPa, push increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The adjustable stroke is a rear mechanical stopper that trims the travel window down to 160-200 mm; it does not lock or hold the load. The adjustable air cushion is a separate needle valve that tunes end-of-stroke deceleration to protect the end covers from impact. Neither feature holds position without live air pressure.
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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