Technical data sheet (used machine: CEEVER mod. TUNNEL – year 1999)

• Brand: CEEVER

• Model: TUNNEL (year of construction: 1999)

• Machine type: Industrial tunnel washing system with multi-stage treatment (phosphogreasing, cold washing, hot washing, blowing, unloading)

• Overall machine length: 7,800 mm

• Tunnel clearance (passage section): 500 × 350 mm

• Stages present: phosphogreasing sector, cold washing, hot washing, blowing, unloading

• Machine condition: "It needs some maintenance but would then be perfectly functional"

• Intended use: industrial parts requiring surface treatment (metal, small parts, components, etc.)

• Accessories/Options: (not specified in the advert) but typically automatic feeding systems, conveyor, filters, pumps, chemical tanks

• Note: Year 1999, used, therefore wear and tear must be taken into account, potential regulatory compliance (if not CE)

• Availability: email contact for viewing

Conversational description from an experienced salesman

Let's imagine you're considering purchasing this used machine: the 1999 CEEVER model TUNNEL is a real bargain for a company looking for a robust, industrial, and well-tested tunnel car wash. As an experienced seller, I'll tell you why it's worth it, what to expect, how it's made, and how to use it.

The machine features a tunnel approximately 7,800 mm long: a heavy-duty frame that accommodates an internal tunnel with a clear passage of 500 x 350 mm. This means that the parts passing through the tunnel must fit within these dimensions or be appropriately equipped. Being from 1999, the machine is "used," so it should be treated as a carefully selected used machine: robust, with some maintenance to do, but with many years of use if properly cared for.

How it is made and what it is composed of

The CEEVER TUNNEL is composed of several segments: a conveyor that feeds the parts into the tunnel, the tunnel itself (with multiple sections: phosphodegreasing, cold washing, hot washing), a blowing area, and an unloading area. Inside, you'll find bath circulation pumps, chemical tanks for phosphating, high-pressure washing pipes and nozzles, drying blowers, a metal support structure, a cover and thermal insulation, an electrical panel, and a control system. The structure is made of painted/chemical-resistant steel. The system is 7.8 m long, requiring space, parts handling arrangements, and adequate access.

Key components include:

• Conveyor (warehouse/chain or belt) that moves the parts through the various stages

• Tanks and tanks for chemical baths (phosphogreasing) and for cold/hot washing

• circulation pump(s) for chemical toilets and washing

• High pressure spray nozzles in the hot/cold wash section

• Blowers for drying after washing

• Workpiece/chip residual water discharge/evacuation system

• Electrical panel and control automation (machine controls, safety devices)

• Load-bearing structure, access panels, pipes, valves, filters, signals

• Any chemical level sensors, thermostats, vent pumps

• Chemical waste discharge/collection system/disposal filters

Measurements and mechanical characteristics

• Overall length: 7,800 mm

• Clear tunnel section: 500 mm (width) × 350 mm (height)

• Being a tunnel system, the conveyor typically allows a continuous or cyclic flow of pieces

• The weight of the pieces passing through must be compatible with the capacity of the conveyor (data not provided in the advertisement)

• The system performs chemical + thermal + mechanical action: in hot washing, heating of the bath is required, therefore heating element / thermostat

• Good structural stiffness is necessary to ensure that the tunnel does not deform and that the free section remains precise.

• Mechanical systems support workpiece translation, splashes, blows, so they must be designed for low vibrations and good stability

Mathematical formulas and optimal use parameters

To use the machine optimally, some parameters can be considered:

• Belt/conveyor speed ( v ) (m/min) = useful tunnel length ( L ) (m) ÷ cycle time ( t ) (min)

• Time the piece remains in the bath = length of the bath section ( L_b ) ÷ speed ( v )

• Maximum piece load ( W_{\max} ) to be checked: if the conveyor has capacity ( C ) (kg), then ( W_{\text{piece}} \leq C )

• Bath temperature ( T ) (°C) must be kept constant to ensure optimal chemical reaction: for example ( T \geq T_{\text{min}} ) for efficient phosphating

• Pump flow rate ( Q ) (m³/h) and spray pressure ( P ) (bar) must be sized: Pump power ≈ ( \rho \cdot g \cdot Q \cdot H / \eta ) where ( \rho ) = liquid density, ( g )=9.81 m/s², ( H )=head (m), η = efficiency.

• Residue removal rate ( R ) = function of treatment time, spray pressure, bath temperature and detergent quality: ( R = f(P, T, t) )
  Using these formulas and parameters, it is possible to size the washing cycle to obtain optimal performance.

Materials it can handle

This type of CEEVER TUNNEL system is particularly suitable for metal materials and mechanical components: structural steel, cast iron, brass/aluminum small parts, automotive components, used or new machine parts, valves, pumps, and various mechanical components. The advert does not specify material restrictions, however, as it is a water-based cleaning system with phosphogreasing, it is ideal for metals requiring cleaning, pickling, or surface phosphating.

Usage – Procedure for use

1. Preparation: check that the piece is compatible with the free section (500 × 350 mm) and with the conveyor fastening requirements.

2. Loading the piece: manually or automatically place the piece on the conveyor.

3. Conveyor start: the piece enters the first phase (phosphogreasing) where it is immersed or chemically treated.

4. Then switch to cold/hot washing with spray nozzles: temperature and pressure adjustment.

5. Blowing/Drying: The part is blown to remove water/residue.

6. Piece unloading: at the end of the tunnel, the piece comes out and is collected.

7. Quality check: check that the surface is clean, free of dirt, and meets the phosphating requirement.

8. Daily cleaning and maintenance: remove debris, check filters, chemical levels, valves, pumps.

Possible accessories and combinations

• Automatic conveyor (belt or chain) with speed regulation

• Robotic or automated loading/unloading system

• High pressure pumps/special nozzles for high performance washing

• Bathroom heaters for hot washing

• Additional tanks for secondary treatments (pickling, degreasing)

• Chemical filtration system and recirculation pumps

• Control and automation software for monitoring parameters (temperature, pressure, flow rate)

• Specialized waste water/blowing device

• Data collection and monitoring for predictive maintenance

Maintenance, how to check a good used car

When evaluating this used CEEVER mod. TUNNEL, it is necessary to check:

• Hours of use/machine history: the less used the better.

• Condition of the conveyor: chain or belt, check wear, lubrication, play.

• Condition of pumps and nozzles: check that the nozzles are not clogged and that the pressure is still in line with the original values.

• Condition of chemical tanks: check for corrosion, wear, and any cracks.

• Condition of pipes, valves and thermal insulation: check for leaks, rust, corrosion.

• Electrical panel inspection and automation: wiring, switches, safety.

• Check that the free section still tolerates the declared dimensions (500x350 mm) and that the conveyor is functioning correctly.

• Check that the machine has received regular maintenance: change filters, clean tanks, check chemical levels.

• Regulatory verification: if the machine is not CE marked or does not have updated documentation, an adaptation will be necessary.

Safety and compliance standards

If the used machine does not have the CE marking or updated documentation, it is essential to comply with current regulations (Machinery Directive 2006/42/EC, electrical safety standards, protections, etc.). It is necessary to check:

• Presence of fixed or mobile guards that prevent access to dangerous areas during operation.

• Conveyor sections with signs, emergency, switches.

• Compliant electrical panel: differential switches, earthing, caution with chemical substances.

• Updated use/maintenance manual, intervention log, operator training.

• If the machine is imported or built before the current legislation, an adaptation in the form of “revamping” may be required to bring it into compliance.

Sectors of application

The CEEVER mod. TUNNEL is used in the following sectors:

• General mechanical industry: cleaning of metal components after machining or before assembly.

• Automotive: cleaning and phosphating of parts, shafts, blocks, molds.

• Aerospace: structural components, small parts, surface treatments.

• Off-road/earthmoving vehicles: large components to handle.

• Small metal parts, taps, fittings: series of small pieces that require washing and phosphating.

Why it's better to buy it used

Buying this used machine is worthwhile because:

• It is a pre-built, tested industrial system, 7,800 mm long – therefore suitable for large pieces and production.

• The cost of purchasing a used one will be significantly lower than a new system.

• You can get into production more quickly (no need to wait for new production).

• Well-selected and inspected used vehicles can provide many years of efficient service.

• From a payback perspective, the investment is small and the economic return can be rapid.

I repeat: the used machine in question is a CEEVER model TUNNEL from 1999, length 7,800 mm, tunnel clearance 500 x 350 mm, equipped with phosphodegreasing + cold wash + hot wash + blowing + unloading. Taking into account all the parameters above, you can decide if it's the right deal for you.

"CEEVER" industrial washing machine MOD. TUNNEL from 1999 - Machine length 7800mm Tunnel clearance 500x350(mm) System equipped with phosphogreasing sector, cold wash, hot wash, blowing and unloading The machine requires some maintenance but would then be perfectly functional If interested in a viewing, please contact the following email address: This email address is protected from spambots. You need JavaScript enabled to view it.