Martin Engineering introduced its next generation of transfer point dust control equipment.
Martin ApronSeal urethane skirting, GravitySeal self-adjusting urethane skirting and the A.I.R. Control dust curtain are new solutions from Martin Engineering.
“When designing these, our focus was safety, performance and longevity,” says Bert Erdmann, global engineering manager of conveyor products at Martin Engineering. “Compliance and ease of maintenance are top of mind for our customers. We’ve discovered that passive dust and spillage control at the point of emission with safe maintenance built in is the most effective and economical method of containment.”
ApronSeal urethane skirting
Extending along the length of the skirtboard, Martin Engineering says the skirting’s design provides multiple “pieces” of reliable containment for material fines.
A primary strip is shaped to match the trough angle and create a tight seal. The optional self-adjusting secondary outer flap covers slight variations in the belt’s profile, trapping air and dust.
The ApronSeal urethane skirting requires only 2 in. of free belt area, and the self-adjusting secondary seal can be trimmed to match the available free belt area. Supplied in 60-in. strips, it features T‑slot end connections for longer chutes. It’s designed for external maintenance, improving safety and minimizing service time.
GravitySeal self-adjusting urethane skirting
Using torsion arms that allow the low-friction urethane skirting to smoothly ride vertical fluctuations in the belt, GravitySeal delivers a skirtboard seal that prevents spillage and reduces dust emissions, according to Martin Engineering. The automatic corrections eliminate the need for downtime to adjust the skirting level due to wear.
Featuring a seal and clamp assembly, GravitySeal is designed for conveyor speeds up to 1,300 ft. per minute with minimal free edge space, providing a seal with as little as 1.25 in. of free area on each side of the belt.
The unit’s urethane sealing strip is available in continuous lengths up to 300 ft. and provides 2 in. of wear life. Replacement involves quickly and easily removing the linchpins and installing the new pre-punched strip, the company says.
A.I.R. Control dust curtain
Engineered for enclosed conveyor transfer points, Martin Engineering says these dust control solutions are modular urethane curtains with handles that allow a single worker to safely adjust or replace them from outside the enclosure.
The safety features eliminate the need for confined‑space entry and reduce service time to just minutes, the company adds.
Each unit is a slide-in cartridge with individual urethane flaps that can be machine-cut to match the load’s angle of surcharge. Positioning the curtains close to the material load allows the A.I.R. Control dust curtain to create controlled recirculation zones. This allows dust particles to agglomerate and settle out, enhancing overall transfer point performance while reducing respirable and nuisance dust emissions.
Designed for safety and compliance
When installed on an existing transfer point, Martin Engineering says ApronSeal urethane skirting, GravitySeal self-adjusting urethane skirting and A.I.R. Control dust curtains provide an effective passive dust control solution.
“We’ve found urethane to be a versatile and lasting material that can withstand the rigorous demands of the bulk handling industry,” Erdmann says.
