Box Furnace, Side Open
A side-opening box furnace for tempering, stress-relief annealing and aluminium-alloy ageing, with a roof-mounted air-circulation system that keeps the chamber uniform.
Side-Open Box Furnace
The RX3-45-6 is a side-opening box furnace built for the tempering side of a heat-treatment shop: tempering, stress-relief annealing and aluminium-alloy ageing. It is the lowest-temperature furnace in our range and the one most customers start with.
A roof-mounted circulation fan moves hot air through the chamber, so the soak is uniform across the whole load rather than only around the heating elements. The hand-operated side door swings clear of the working face, which keeps loading with a crane, hoist or forklift straightforward.
As with every furnace we build, chamber size, rated power and supply voltage can be changed to suit your process — the RX3-45-6 is the reference configuration, not a fixed box.
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What you are buying
Uniform soak from air circulation
A roof-mounted fan keeps the working volume within a tight band, which is what tempering, ageing and stress relief actually depend on.
Side door that clears the working face
The door opens fully aside, so baskets, fixtures and long parts can be loaded with a crane or forklift without working around the door.
Ceramic-fibre lining
Low thermal mass heats quickly and keeps the outer shell cool enough to work next to in a busy shop.
PID control with over-temperature protection
Digital temperature control, over-temperature cut-out and a full wiring diagram supplied with the machine.
Specification
Reference specification for the RX3-45-6. Values marked as customisable are set per order.
| Furnace type | Box furnace, side-opening (manual door) |
|---|---|
| Model | RX3-45-6 |
| Application | Tempering, stress-relief annealing and aluminium-alloy ageing; roof-mounted hot-air circulation keeps the chamber uniform |
| Total weight | 1,800 kg |
| Shell steel thickness | 2.75 mm |
| Overall dimensions | 2,100 × 1,400 × 1,650 mm |
| Effective chamber size | 1,200 × 600 × 500 mm |
| Chamber volume | 360 L |
| Rated power | 45 kW |
| Max. working temperature | 650 °C |
| Control accuracy | ±1 °C |
| Power supply | 415 V / 50 Hz / 3-phase (Malaysia) |
| Lining material | Heavy refractory brick base + high-alumina fibre modules |
| Lining total thickness | 300 mm |
| Heating elements | Resistance strip |
| Thermocouple | K-type NiCr–NiSi |
| Shell surface temperature rise | ≤60 °C |
| Door / mechanism | Handwheel-locked door, roof-mounted hot-air circulation fan |
| Control system | Digital meter and multi-step LCD programme controller, with SCR thyristor multi-step temperature control |
| Safety protection | Door power interlock, over-temperature alarm |
| Export packing | Timber base + stretch film + wooden case |
| Documentation | English manual, drawings, factory test report |
| Customisation | Chamber size, rated power and voltage on request |
Related furnaces.
The same workshop builds these — and they are often quoted together with the furnace you are looking at.
