Reverse-Air Filter Bags (RABH)
Purpose-built for the gentle, continuous cleaning cycles of reverse-air baghouses, Masturlal RABH bags are offered in the two fibres that have proven most reliable in this duty—fibreglass and polyester—each engineered to deliver sub-5 mg/Nm³ stack emissions and long service life.
Media Options & Performance Window
Fibre Continuous Temp (°C) Key Attributes Typical Duty
Polyester 150 Cost-efficient, robust flex life Grain, cement packhouses, low-temp boilers
Fibreglass 260 Peak thermal & chemical stability Cement kilns, alumina calciners, sinter plants
(PTFE-impregnated or graphite-lubed)
Attachments & Hardware
Top Configurations Bottom Configurations Cage Options
Corded cuff / strap. Sewn-in disc Epoxy-coated MS
Loop hanger Reinforced disc SS 304 / SS 316
Band clamp Anti-abrasion cone 10–20 ribs, Ø 4–6 mm
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Emission level: ≤ 5 mg/Nm³ (field-validated)
Bag diameters: 200 – 400 mm | Lengths: up to 25 m
Operating temperature: • Polyester ≤ 150 °C • Fibreglass ≤ 260 °C
Cleaning cycles: > 50 000 reverse-air cycles without loss of permeability
Quality: ISO 9001 / 14001 manufacture; 100 % seam-integrity and airflow inspection
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Multi-Ply Structure Outer abrasion shield, mid-loft layer, and fine-denier capture zone engineered to rebound fully after each reverse-air cycle, keeping ΔP stable.
Surface Finishes Options include singed, glazed, PTFE dip, graphite lube, oleophobic or anti-static—applied in-house for total process control.
Abrasion Protection Reinforced toe-guard, heavy-denier fabrics and optional wear cones extend life in high-velocity inlet zones.
Seam Integrity 5-thread safety lock-stitch or ultrasonic welds; every bag is individually air-flow tested before dispatch.
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Large-volume RABH systems in cement kilns, alumina calciners and coal boilers
Steel sinter plants and carbon black furnaces operating at elevated temperatures
Food-grade dryers where gentle cleaning preserves product integrity text goes here
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Process review—gas chemistry, temperature profile, air-to-cloth ratio
Media proposal & pilot bags—lab data plus on-site trial set
Full-scale rollout—guaranteed lead time from our 30 000 sq ft plant
Performance verification—leak scan, ΔP logging and stack test sign-off