Medmix Mixpac MBQX QUADRO Static Mixer Nozzles for B-System Cartridges

The Mixpac MBQX static mixer by medmix (formerly Sulzer Mixpac) is a disposable QUADRO mixing nozzle for dispensing two-part adhesives from B-System AB cartridges. MBQX mixers are the 4:1 and 10:1 ratio version of the B-System QUADRO line and carry a dust grey body with orange elements. The 1:1 and 2:1 version is the MBQ, which uses green elements. Two sizes are available, both in a 5.3 mm bore, differing only in element count and length.

Not sure which to pick? Start with the 16 element. If the mixed bead comes out streaky or cures unevenly, move up to the 24 element. Both are stocked and sold individually, so testing one costs you a single nozzle.

B-System or F-System: check your cartridge first

B-System and F-System nozzles are not interchangeable. B-System covers the smaller 45 ml, 50 ml, and 75 ml AB cartridges used for repair work, small assemblies, and sample quantities. F-System covers the larger 200 and 400 series cartridges used in production. If your cartridge holds 200 ml or more, you need an MFQX instead.

Reading the MBQX model code

Using MBQX 05-24L as the example:

Mixpac MBQX size chart

Both MBQX models use a dust grey body with orange QUADRO elements. Click either model for full specifications.

Choosing between the two

Both MBQX nozzles share the same 5.3 mm bore and the same luer slip tip, so bead size, flow rate, and fitment are identical. The only difference is element count and the length that comes with it.

• 16 elements, 90.7 mm. Shorter nozzle, less resistance at the gun, and less material left in the nozzle at changeover. The starting point for materials that blend without much shear.
• 24 elements, 122 mm. Eight more mixing passes for materials that streak or cure unevenly at 16. The cost is 31 mm more nozzle, more back pressure, and 0.65 ml more material retained.
• Off-ratio materials often need the extra passes. At 4:1 and especially 10:1, there is far less of the B side to distribute than at 1:1, so these chemistries can be less forgiving of a short mixer. Watch the bead before settling on 16.
• Retained volume matters more at this scale. On a 50 ml cartridge, 1.72 ml to 2.37 ml stays in the nozzle at every changeover. Worth factoring in if you swap nozzles often or dispense in small shots.

Compatible B-System cartridges

Running a 1:1 or 2:1 B-System cartridge instead? Use the MBQ series with green elements. The ratios do not interchange.

MBQX compared to the other B-System mixers

The B-System line uses element color to signal mix ratio. Green means 1:1 and 2:1. Orange means 4:1 and 10:1.

Performance in production

• Square QUADRO element geometry divides and recombines the A and B sides through a square flow path rather than a helical one.
• B-System twist and lock connection mounts directly to the AB cartridge with no converter and no tools.
• Disposable construction avoids purging and cleanup between adhesive batches.
• Dust grey body with orange elements makes the 4:1 and 10:1 version easy to tell apart from the green element MBQ at the bench.
• Luer slip tip mates with syringe fittings, valves, and small dispensing accessories.
• Both models share the same 5.3 mm bore, so switching element count changes mixing and length without changing bead size.

Common applications

• Small-batch and repair bonding from 45 ml, 50 ml, and 75 ml cartridges
• Off-ratio two-part chemistries that ship in 4:1 and 10:1 cartridges
• Electronics and small component assembly where a fine bead is needed
• Sample and trial dispensing before committing to a production cartridge size
• Field service and maintenance work with portable cartridge guns
• Dispensing epoxy, polyurethane, silicone, acrylic, and MMA two-part adhesives and sealants

Specifications

Ordering

Both MBQX sizes are stocked and sold individually, so you can order one to test a material or a case quantity for a production run. Pair them with matching B-System cartridges and dispensing guns from the dispensers, mixers, and nozzles category.

Frequently asked questions

What cartridges does an MBQX static mixer fit?

Mixpac B-System AB cartridges in 4:1 and 10:1 ratios, covering the 50 ml 4:1, the 45 ml and 50 ml 10:1, and the 75 ml 10:1 sizes. B-System nozzles do not fit F-System 200 or 400 series cartridges, which use the MFQX instead.

What is the difference between MBQX and MBQ mixers?

Element color. MBQX has orange elements and is built for 4:1 and 10:1 cartridges. MBQ has green elements and is built for 1:1 and 2:1. Both use the same dust grey body, the same 5.3 mm bore, and the same lengths, but the ratios do not interchange. Check the element color against the ratio printed on your cartridge.

Should I use the MBQX 05-16L or the 05-24L?

Start with the 05-16L. Both have the same bore and the same tip, so the only difference is 16 versus 24 mixing elements. If the mixed bead shows streaking, color variation, or uneven cure at 16, step up to the 05-24L. The 24 element version is 31 mm longer and retains 0.65 ml more material.

What does MBQX 05-24L mean?

MBQ is mixer, B-System, QUADRO design. The X marks the 4:1 and 10:1 version with orange elements. The 05 is the inner diameter rounded down, actually 5.3 mm. The 24 is the number of mixing elements. The L is the luer slip outlet tip.

Can I buy a single MBQX nozzle?

Yes. Both sizes are stocked and sold individually, so you can order one to check fit or test a material before buying a larger quantity.

How much adhesive stays in an MBQX nozzle?

1.72 ml on the 05-16L and 2.37 ml on the 05-24L. On a 45 ml to 75 ml cartridge that is a meaningful share of the pack, so it is worth factoring in if you change nozzles between shots rather than running a cartridge through on one nozzle.

Does an MBQX mixer need a converter or retaining nut?

No. The MBQX mounts directly to the B-System cartridge with a twist and lock connection. No converter, no retaining nut, no tools.

Need help?

Need help matching a nozzle to your cartridge and adhesive chemistry? Call (800) 220-1966 or email [email protected].