Commercial Bubble Prewash Machine for Dishwashing
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Model No.: HZ-GP1500
Brand: Hengze
Place Of Origin: China
Service System: Return And Replacement
Warranty Service: 2 Years
Certification: Ce
Power Specifications: Other Plugs
Appropriate Types: Hotel, Commercial
Digital Timer: Yes
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The hardest part of dishwashing often happens before the dishwasher is switched on. Grease, leftover food and dried residue may need to be loosened or removed first, especially in kitchens handling a large number of meals every day.
The Hengze HZ-GP1500 Commercial Bubble Prewash Machine is designed for this first stage of the washing process. It provides a 250 L heated prewash tank where soiled items can be soaked and agitated before moving to the main washing equipment.
A 0.55 kW blower creates vortex-style air and water movement inside the tank. Instead of leaving items in still soaking water, the continuous bubble action works around the load to help loosen grease and attached food residue. Water temperature can be adjusted between 40°C and 55°C, supported by a 6 kW heating system.
The machine also helps manage what comes off during prewashing. Floating grease is handled through an overflow oil-separation design, while larger food particles are collected by the residue filter. This keeps more solid waste out of the drainage system and makes the dirty-dish area easier to manage.
For day-to-day operation, water-level detection automatically cuts power when insufficient water is detected, helping prevent dry heating. A rotatable stainless steel faucet and straightforward control panel keep routine operation simple.
As part of Hengze's Commercial Stainless Steel Kitchen Equipment range, the HZ-GP1500 Commercial Bubble Washer can be installed before a Commercial Dishwasher or used as a dedicated auxiliary cleaning station in restaurants, hotels, canteens and central kitchens.

The HZ-GP1500 creates a separate prewashing step before the main dishwashing process.
Greasy and heavily soiled items can first be soaked and agitated in the bubble tank rather than relying entirely on manual sink prewashing.
A 0.55 kW blower generates continuous air movement through the washing tank.
The resulting vortex and bubble action moves water around the load, helping loosen attached food residue and grease.
The large 250 L tank provides space for batch prewashing, making the machine practical for commercial kitchens dealing with concentrated washing loads.
The water temperature is adjustable between 40°C and 55°C.
Warm-water soaking combined with active bubble movement helps deal with greasy and stubborn soils before the next washing stage.
A 6 kW stainless steel heating tube provides rapid heat transfer for the prewash tank and is designed for use in a wet commercial environment.
The overflow structure helps separate floating grease, while the filter collects larger solid food particles.
This gives kitchen staff a more organized way to deal with waste released during prewashing.
By capturing larger residues before they flow away with the washing water, the filtration system helps reduce the risk of food debris accumulating in the drain.
Water level is monitored automatically. If the tank does not contain enough water, the system cuts power to help prevent dry heating.
The machine uses a stainless steel body with strong stainless steel supporting feet for commercial kitchen use.
The integrated faucet can be rotated as required for water filling, rinsing and routine cleaning around the tank.
Temperature and operating functions are kept on a simple control panel, allowing kitchen staff to manage daily prewashing without complicated settings.
| Item | Specification |
|---|---|
| Model | HZ-GP1500 |
| Product Name | Commercial Bubble Prewash Machine |
| Dimensions | 1500 × 800 × 850 mm |
| Body Material | Stainless Steel |
| Function | Auxiliary Cleaning / Prewashing |
| Tank Capacity | 250 L |
| Cleaning Method | Vortex Bubble Washing |
| Washing Temperature | 40–55°C |
| Heating Power | 6 kW |
| Blower Power | 0.55 kW |
| Rated Power | 6.55 kW |
| Power Supply | 380V / 3N / 50Hz |
| Water-Level Protection | Automatic Low-Water Power Cut-Off |
The HZ-GP1500 is intended for commercial washing areas where soaking and pre-cleaning are required before the main washing stage.
Typical applications include hotel dishrooms, restaurant kitchens, banquet kitchens, school canteens, university dining halls, factory cafeterias, employee canteens, catering operations and central kitchens.
It is especially useful where grease, leftover food and dried residue create additional work at the dirty-dish station.
A typical workflow can be arranged as:
Dirty Dish Collection → Bubble Prewash → Main Dishwashing → Clean Tableware Handling
For new commercial kitchen projects, the HZ-GP1500 can also be planned alongside dishwashers, sinks, worktables, tableware conveyors and other commercial Stainless Steel Kitchen Equipment.
The HZ-GP1500 can be supplied as an individual commercial Bubble Washer or incorporated into a larger dishwashing project.
Customers can provide Hengze with information about their tableware or items to be cleaned, washing volume, kitchen layout, available space, electrical supply and existing dishwasher configuration.
Based on these details, Hengze can help determine where the prewash machine should be positioned within the washing workflow.
Support includes installation guidance, operating manuals, remote technical assistance, maintenance guidance and long-term spare-parts supply.
For dealers, contractors and commercial kitchen projects, Hengze can also coordinate the bubble prewash machine with compatible commercial dishwashers and stainless steel washing-area equipment.
OEM requirements can be discussed according to the project.
The HZ-GP1500 is prepared for international transportation with protection around the machine body, control area, heating components and other key sections.
Machine Dimensions: 1500 × 800 × 850 mm
Standard Power Supply: 380V / 3N / 50Hz
Rated Power: 6.55 kW
Customers should confirm the local electrical supply before placing an order.
Final packing dimensions and gross weight are determined according to the actual export packaging and order configuration.
For complete kitchen projects, the commercial bubble prewash machine can also be arranged for shipment together with commercial dishwashers and other commercial stainless steel kitchen equipment.
A commercial bubble prewash machine provides an auxiliary cleaning stage before the main washing process. It uses water, heat and bubble agitation to help loosen grease and food residue.
Heavily soiled items may carry grease, leftover food and dried residue. Prewashing helps remove or loosen part of this soil before the items move to the main washing stage.
No. The HZ-GP1500 is specified as auxiliary cleaning equipment. It is designed for prewashing rather than replacing the complete commercial dishwashing process.
A 0.55 kW blower generates airflow that creates bubble and vortex movement inside the tank. The moving water agitates the items during soaking and helps loosen attached soils.
An ordinary sink mainly provides static soaking. The HZ-GP1500 adds heated water and active vortex bubble movement, providing continuous agitation during the prewash stage.
The HZ-GP1500 has a 250 L washing tank.
The specified washing temperature is adjustable from 40°C to 55°C.
Yes. The machine has a 6 kW heating system.
The blower is rated at 0.55 kW.
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