OverviewThe LABWIT Back Heating Oven ZXRD-A7140 is a 140 L forced-air drying oven engineered for routine laboratory and industrial thermal processes. It supports glassware drying and sterilisation up to 300°C and controlled heating applications such as aging, bonding, curing, annealing, stress relieving, burn-in and hardening tests. The back-heating design improves temperature uniformity and reduces overshoot. Models rated to 300°C include an LED control panel and programmable cycles (up to 9 programs with 18 temperature/time steps).
Features- Forced-air convection combined with three-dimensional heating ensures uniform air circulation and heat distribution.
- Large LED display on 300°C models for clear status and parameter readout.
- Argon-filled multiple glazed tempered safety glass window (3 layers for 300°C models) for safe sample observation and reduced heat loss.
- Electro-polished stainless steel inner chamber with rounded corners for easy cleaning and improved airflow.
- Safety protections including over-temperature limit, separate over-current fuses and earth-leakage trip protection.
- Non-volatile memory retains settings after power interruption.
- Standard wheel casters provided on models ≥ 210 L for mobility.
- Adjustable electro-polished stainless steel shelving to optimise airflow around samples and facilitate cleaning.
- Two wire grids and two shelves included as standard.
Air Tight Door- Hermetic door closure for optimal airtightness and minimized heat loss.
- “Push & Catch” handle design for easy gripping and reliable sealing.
Adjustable Air Vent- Adjustable vent for controlled humidity discharge during drying cycles.
- Knob located on the side wall for easy access and fine adjustment.
- Vent outlet positioned on the rear wall to direct moisture away from the chamber.
Convenient Working Environment- Full stainless steel inner chamber for corrosion resistance and easy maintenance.
- 50 mm high-density insulation to minimize heat dissipation.
- Two shelves included as standard to support flexible sample layouts.
Technical Specifications- Model: ZXRD-A7140
- Volume: 140 L
- Heating mode: Back heating
- Programmable control: Standard (9 programs / 18 steps)
- Temperature range: Ambient +5°C to 300°C
- Temperature accuracy: ±0.1°C
- Temperature uniformity: <±2.5% (@ max. temperature)
- Temperature fluctuation: ±1.0°C
- Display: LED
- Alarm: Enabled
- Timer: 0 - 9999 min
- Settings: Digital
- Grids included: 2 (Max. 17)
- Grid size (WxD): 385 × 405 mm
- Distance between grids: 30 mm
- Chamber dimensions (WxDxH): 450 × 440 × 685 mm
- Exterior dimensions (WxDxH): 640 × 570 × 1095 mm
- Packing dimensions (WxDxH): 720 × 670 × 1255 mm
- Net / Gross weight: 70 / 104 kg
- Power: 2300 W
- Electricity: 220-240 V, 50/60 Hz
- Approval: CE, ISO
- Included accessory reference: P9022 Grid Plate for ZXRD-A7140, S/S