Tunnel Dishwashing Machines

Tunnel Dishwashing Machines — a tunnel machine is a top-class dishwashing solution for high-volume kitchens; it is an industrial appliance that turns dishwashing into a continuous conveyor process and allows the kitchen to operate at maximum efficiency even during peak hours.

Operating principle of tunnel machines

Tunnel Dishwashing Machines — the operating principle of tunnel machines is radically different from that of hood-type or front-loading machines. Continuous process — dishes are placed on the conveyor belt at one end and emerge clean and dry at the other; there is no need to wait for one cycle to finish; staff simply load and unload dishes. Washing zones — inside the machine there are several zones: pre-washing (spraying with dirty water), main washing, rinsing with clean water, final hot rinse (+82–90°C) and a drying zone; see Hood-Type Dishwashers. Dish throughput — 1,000–5,000 plates per hour depending on the machine size and belt speed; for comparison: the best hood-type machine — 800–1,200 plates. Staff requirement — a tunnel machine requires 2 people: one loads dirty dishes, the other collects clean ones; a significant increase in throughput per staff member.

Where a tunnel machine is a justified investment

Tunnel Dishwashing Machines — a tunnel machine is a large investment that is justified only in specific circumstances. Large canteens (200+ meals a day) — university, hospital, prison and factory canteens serve hundreds or thousands of people; a front-loading or hood-type machine is not fast enough; a tunnel machine is the only solution. Catering businesses — when serving large events (conferences, weddings, sports events) the volume of dishes is extremely high in a short time; see Pot Washers. Central kitchens of fast food chains — centralised preparation for the needs of a large fast food chain; high dish turnover; a tunnel machine is an industrial solution. Dishwashing centre of restaurant chains — some large restaurant chains centralise dishwashing; dishes are transported from several locations to a central washing point.

Energy consumption and water saving

Tunnel Dishwashing Machines — modern tunnel machines are equipped with energy-saving technologies. Heat recovery — the machine uses heat from hot wastewater to preheat the water for pre-washing; saves up to 30% energy compared to older models. Water consumption — modern tunnel machines use 1–2 litres of water per dish rack; older models used 3–5 litres; water saving is significant in intensive use; see Dishwashing Machines. Cold water system — washing water is reused; only the final rinse uses fresh water; the system reduces overall water consumption. Power connection — tunnel machines consume 10–40 kW; a mandatory three-phase 400V connection with sufficient fuse capacity is required.

Frequently asked questions

How much space is needed to install a tunnel machine? Tunnel Dishwashing Machines — the smallest tunnel machines can be 2–3 metres long; larger industrial appliances — 5–10 metres; additional space must be provided for loading and unloading tables at both ends; exact dimensions depend on the model; contact BHS; see Professional Dishwashers.

Does a tunnel machine require special installation? Tunnel Dishwashing Machines — yes; installing a tunnel machine requires careful planning — water connections, drainage, ventilation and electricity; see Hood-Type Dishwashers.

Why choose BHS?

BHS – Baltic HoReCa Solutions supplies professional equipment for restaurants, cafés, hotels and canteens: more than 20,000 products from many manufacturers. Our specialists help you choose the right equipment and spare parts for your kitchen or bar.

Delivery

We deliver across the European Union. Delivery time and cost depend on the order volume and destination — contact the BHS team for an exact price and lead time.