A&A Melters, A-40 Hot Rubber Melter – 35 Gal Compact Melter

The A-40 hot rubber melter from A&A Melters is a compact, under-fired air-jacketed kettle for heating rubberized asphalt and similar materials. It supports small-scale roofing and crack-sealing tasks where a portable, quickly heated melter is needed.

This unit’s oil-free, high-temperature insulation and stainless-steel fire tube help minimize heat-transfer fluids and reduce operator burn risk during rooftop work. Its size allows it to fit through standard doorways or into elevators for jobsite mobility.

Key Features

• 35 US gal capacity hot rubber melter kettle
• Air-jacketed, oil-free construction for reduced heat-transfer fluids
• Standard 4″ Schedule-80 stainless-steel fire tube
• Rapid heat-up (typically ~20–30 min)
• Choice of agitator power: Honda 4 HP gas, 110 V electric, or optional diesel
• Adjustable liquid propane burner with optional Beckett diesel burner
• Optional accessories: temperature controls, caster wheels, flame guard

Capacity: 35 US gallons

Heat-up time: ~20–30 minutes

Material output: approx. 30 gal/hr at ~79 % efficiency

Fire tube: 4″ Schedule-80 stainless-steel

Agitator: Honda 4 HP air-cooled engine, 110 V electric, or optional diesel

Burner: Adjustable liquid propane 300,000 BTU; optional Beckett diesel

Insulation: ½″ super high-temp + 2″ high-temp fiberglass jacket

Shell: Inner 3/16″ rolled steel; outer 1/8″ or 3/16″ plate

Dimensions: approx. 62″ L × 31.75″ W × 47″ H

Shipping weight: approx. 800–850 lb

• Place the A-40 on level ground; ensure sufficient clearance for loading and operation.
• Connect propane supply or optional diesel burner per configuration; check for secure fittings.
• Initialize burner and gradually warm the kettle until material begins softening.
• Insert agitator drive (engine or electric) once melting begins; monitor movement and consistency.
• Load material incrementally to avoid thermal shock and ensure even heating.
• Monitor temperature and production output targeting approx. 79% efficiency.
• Use optional temperature controls if installed to maintain temperature range.
• Shut down burners, let cool, and move unit safely once pallet is solid and stable.

Q: What is the A-40’s capacity and how quickly does it work?

A: It holds 35 gallons and reaches optimal temperature in about 20–30 minutes, yielding around 30 gal/hr at ~79% efficiency.

Q: What powers the agitator?

A: Standard options include a 4 HP Honda gas engine or 110 V electric drive; diesel agitator is optional.

Q: Can it be moved easily on a jobsite?

A: Yes—its compact size allows it to fit through standard doorways and into elevators.

Q: What fuel types are supported?

A: It comes standard with an adjustable propane burner, with an optional Beckett diesel burner available.

Q: Is it safe for rooftop use?

A: Yes—its oil-free, air-jacketed construction prevents operator burns and allows safe rooftop placement.