A DHG Series Dry Oven purchase should begin with infrastructure and supplier accountability rather than temperature settings. HQS lists eight DHG models with chamber capacities from 25 L to 420 L, power ratings from 500 W to 4,000 W, and either 110 V 60 Hz or 220 V 50 Hz supply options. Those differences affect circuit planning, room access, bench or floor placement, and freight handling.
For veterinary laboratories, a dry oven may be considered for laboratory drying, baking, or heat-treatment workflows when those workflows are defined by the clinic’s own procedures. It should not be treated as interchangeable with a biochemical incubator, which is documented for a 5–60°C temperature range and incubation applications. A laboratory incubator has clinical value where a controlled-temperature environment is needed for laboratory workflows; the procurement team should therefore establish whether the intended work actually calls for incubation or for dry heat before comparing cabinet volume.
What HQS Lists for the DHG Series Dry Oven
The HQS product page for the DHG Series Dry Oven lists model names, capacities, working-chamber dimensions, power ratings, temperature ranges, display resolution, stated temperature fluctuation, timer range, voltage options, external dimensions, package dimensions, and shipping weights.
Listed features include microprocessor control, a double glass observation window, digital displays for set and actual temperature, a running timer, a stainless-steel interior with semicircular chamber corners, PID self-tuning, an over-temperature alarm, and an automatic alarm after operation.
Pricing, import and certification documents for the destination market, installation guidance, preventive-maintenance and cleaning instructions, parts lists, warranty and service terms, and training scope depend on the model and configuration. Ask HQS to confirm them in writing for the exact model and destination before issuing a purchase order.
DHG Dry Oven Capacity, Chamber Size and Power Rating
The documented capacity is useful only when considered alongside usable chamber geometry. A 25 L DHG-9023A lists a 300 × 300 × 275 mm working space, while the 420 L DHG-9423A lists 600 × 550 × 1,300 mm. The larger cabinet offers substantially more vertical internal space, but it also has a stated external size of 740 × 830 × 1,650 mm and a gross weight of 210 kg. Procurement should review delivery paths, lift access, floor location, and final-position access before selecting on capacity alone.
Power is the other early filter. The DHG listings range from 500 W for the 25 L DHG-9023A and 40 L DHG-9030A to 4,000 W for the 420 L DHG-9423A. HQS lists 110 V 60 Hz or 220 V 50 Hz as voltage options. Confirm the plug type, branch-circuit requirement, local connector configuration, and whether the unit is built for one voltage or convertible between them for the quoted model; those are not details to leave to a freight forwarder or local electrician after arrival.
The listed 50–200°C models are DHG-9023A, DHG-9053A, DHG-9123A, and DHG-9423A. The listing assigns a 50–300°C range to DHG-9030A, DHG-9070A, DHG-9140A, and DHG-9240A. All listed models show 0.1°C resolution, ±1°C temperature fluctuation, and a 0–9,999 minute timer. A clinic that needs these values for its quality system or a defined laboratory procedure should request the model-specific documentation from HQS.
DHG-9023A to DHG-9423A: Model Comparison
| Model | Capacity | Working size | Rated power | Listed temperature range | External dimensions |
| DHG-9023A | 25 L | 300 × 300 × 275 mm | 500 W | 50–200°C | 570 × 530 × 460 mm |
| DHG-9053A | 50 L | 415 × 375 × 345 mm | 1,000 W | 50–200°C | 690 × 610 × 530 mm |
| DHG-9123A | 105 L | 550 × 370 × 520 mm | 1,500 W | 50–200°C | 825 × 660 × 690 mm |
| DHG-9423A | 420 L | 600 × 550 × 1,300 mm | 4,000 W | 50–200°C | 740 × 830 × 1,650 mm |
| DHG-9030A | 40 L | 350 × 350 × 350 mm | 500 W | 50–300°C | 620 × 630 × 520 mm |
| DHG-9070A | 70 L | 450 × 350 × 450 mm | 1,000 W | 50–300°C | 620 × 710 × 620 mm |
| DHG-9140A | 140 L | 550 × 450 × 550 mm | 1,500 W | 50–300°C | 720 × 780 × 750 mm |
| DHG-9240A | 225 L | 500 × 600 × 750 mm | 2,000 W | 50–300°C | 770 × 840 × 980 mm |
For a small companion-animal practice with intermittent laboratory demand, the lower-capacity models may reduce the burden of finding space and matching electrical supply. That conclusion should be checked against the actual physical dimensions of trays, containers, or laboratory items the practice expects to place in the chamber.
A referral hospital, equine hospital, or mixed-animal facility may need more internal volume or vertical clearance for its planned laboratory workload. In that setting, the larger DHG-9423A deserves separate facilities review because its 4,000 W rating, 1,650 mm height, and 210 kg gross shipping weight create different installation and receiving questions from the smaller bench-scale units.
What to Include in a DHG Dry Oven Quotation Request
A usable quotation request should identify the exact DHG model, destination country, intended voltage and frequency, and the party responsible for site readiness. Asking only for “a dry oven” creates too much room for assumptions about electrical configuration, accessories, and after-sales support.
- Confirm the exact voltage, frequency, plug type, supplied power cord, circuit requirement, and any grounding requirement for the quoted model.
- Request the external dimensions, packed dimensions, gross weight, delivery orientation, unloading requirements, and any manufacturer-stated installation clearances.
- Ask which shelves, racks, probes, fuses, door seals, heating components, controllers, display components, and glass-door parts are included, optional, or available as replacement parts.
- Request lead times and ordering identifiers for consumable or wear-related components, as well as the stocking location and expected availability of critical spare parts.
- Clarify who provides commissioning, user orientation, preventive-maintenance support, warranty assessment, remote technical support, and on-site repair in the destination market.
- Request the cleaning materials and cleaning restrictions specified for the stainless-steel chamber, glass window, seals, and exterior surfaces.
- Ask which documents will accompany the shipment, including commercial invoice, packing list, electrical documentation, any certification or conformity documents required in the destination market, warranty terms, and model-specific manuals.
Training should be defined as a deliverable, not assumed from the presence of a digital controller. The supplier should state whether training covers receiving inspection, placement, permitted use, routine cleaning responsibilities, documentation, and escalation routes for service. If training is remote, the purchaser should establish who within the clinic will own the records and coordinate with the importer or service provider.
Choosing a DHG Series Dry Oven Model for Your Laboratory
The DHG series specifications support a practical first comparison: choose between the 50–200°C and 50–300°C model groups, then filter by chamber geometry, cabinet footprint, power rating, and destination electrical supply. Local regulatory requirements, service arrangements, replacement-part availability, and total ownership cost are settled at quotation stage rather than by the specification table.
For a clinic importing one unit, the decisive question may be whether the supplier can document a correct electrical build and provide a credible route to service parts after delivery. For a hospital purchasing a larger model, receiving access and room infrastructure may be equally important. Neither issue is resolved by a capacity figure alone.
When dry heat is not the actual laboratory requirement, compare the intended workflow with the operating range and purpose of available biochemical incubator models before committing floor space and import budget. The right decision is the one supported by the clinic’s laboratory need, site infrastructure, and written service commitments—not by cabinet size alone.
