Liquefies solvent-free waxes, oils and release agents directly in the gun — in the heated 0.4 l cup and the heated nozzle, up to 95 °C — and sprays them without pre-melting. The gun weighs 1050 g KUNDE: clarify — empty / with cup / with hose package; figure appears on the website only and runs on 40 V safety extra-low voltage from the control unit.
up to 95 °C · 0.4 l · 1050 g · 40 V
KUNDE: Confirm product family assignment (family "Hot wax technology" = Duoline 2.0 + pressure tank system, as on the current home page; concept question 13)
Key figures
- Temperature range
- 20–95 °C
- Cup
- 0.4 l
- Working pressure (recommended)
- 0.5–1.5 bar
- Safety extra-low voltage
- 40 V
Solves your problem if …
- You process solvent-free waxes, oils, oil-wax combinations, release agents or greases that are pasty or solid at room temperature and melt at 95 °C or below. KUNDE: Media approval taken from the 2011 manual (previous model) — does it apply to the Duoline 2.0? liability-relevant
- You work in cup quantities: 0.4 l per filling, refilling during operation. For continuous demand from tank and hose: hot wax pressure tank system.
- You have compressed air at 0.5–1.5 bar at the workplace and 230 V (or 110 V, optional) for the control unit.
- You need a thin, even coat without pre-melting in a pot and without solvents — wood surface, injection mold, plastic foundation sheet, candle.
- You want a gun the operator holds at 40 V safety extra-low voltage, not at 230 V.
Not the right choice if …
- You want to hot-spray solvent-based paints or media. The Duoline is not explosion-proof; solvent-based media are not approved.
- Your medium has a melting point above 95 °C.
- You want to apply sealing wax, craft wax or hair wax — the Duoline is an industrial device with compressed-air connection and control unit.
- You process several litres per shift without refilling or want to supply an automatic gun on a production line → hot wax pressure tank system.
Not sure whether your medium is suitable?Have suitability checked
Attach the safety data sheet.

How the Duoline 2.0 works
The problem: Waxes and many oils cannot be sprayed at room temperature. Cold application means rubbing on with a cloth, removing the excess and a long polishing window. Pre-melting in a pot and decanting costs time, and in an unheated nozzle the material solidifies.
The solution: The material is heated in the gun's heatable flow cup and liquefies completely. The spray nozzle is heated as well — the material stays warm until it leaves the gun, is easier to apply and spreads more evenly over the surface. Cup and nozzle heating are regulated by the control unit, set point 20–95 °C; the gun itself runs on 40 V safety extra-low voltage. Atomization uses compressed air at 0.5–1.5 bar, air cap optionally flat or round jet.
ASSET FEHLT: Sectional or schematic drawing of cup heating / nozzle heating / 40 V supply
Applications
The hot wax technique has proven itself, for example:
Wood and furniture
Processing wax for finishing wood surfaces (hard wax, oil-wax).
Injection molding and mold making
Applying release agents in injection molding; model and mold making.
Beekeeping equipment
Beeswax in the commercial beekeeping trade, e.g. on plastic foundation sheets.
Packaging
Impregnating packaging materials with wax.
Corrosion protection
Applying viscous lubricants.
Candles and wax sculptures
Finishing and design.
Wax jacket service
KUNDE: substantiate this application or delete it — no third-party evidence for a spraying process
Further industries: joineries, furniture manufacturers, injection molders, beekeeping suppliers, candle manufacturers. KUNDE: confirm list of industries
Technical data Duoline 2.0
| Article no. | 140-200 |
|---|---|
| Temperature (control range) | 20–95 °C |
| Cup capacity | 0.4 l (max. filling 400 ml) |
| Working pressure (atomizing air) | 0.5–1.5 bar (recommended) |
| Nozzle diameter | 1.2 mm (standard); 0.8 mm and 2.0 mm |
| Air cap | Flat / round jet |
| Gun weight | 1050 g KUNDE: clarify — website only, reference unclear |
| Mains connection, control unit | 230 VAC / 50 Hz (optional 110 VAC / 60 Hz) |
| Operating voltage, gun | 40 VAC safety extra-low voltage |
| Power consumption | max. 250 VA |
| Approved media | solvent-free waxes, oils, greases and other solvent-free media, melting point max. 95 °C KUNDE: Media approval taken from the 2011 manual (previous model) — does it apply to the Duoline 2.0? liability-relevant |
| Explosion protection | none |
| Air consumption (l/min) | on request |
| Hose length gun–control unit | KUNDE: previous model 7 m — does this apply to the 2.0? |
| Protection rating | KUNDE: previous model IP 54 — does this apply to the 2.0? |
| Dimensions and weight of control unit | on request |
As of: data sheet 07/2024 (DE and EN).
Versions and options
| Version / option | Article no. | Difference |
|---|---|---|
| Duoline 2.0, 230 VAC / 50 Hz | 140-200 | Standard |
| Duoline 2.0, 110 VAC / 60 Hz | on request | Export version, optional |
| Nozzle 1.2 mm | on request | Standard |
| Nozzle 0.8 mm | on request | finer coat, low-viscosity media KUNDE: confirm recommended use |
| Nozzle 2.0 mm | on request | higher throughput, more viscous media KUNDE: confirm recommended use |
| Air cap flat jet / round jet | — | included in scope of delivery KUNDE: both, or one or the other? |
Scope of delivery
- Gun with heated 0.4 l flow cup
- Control unit with temperature controller
- Hose package
- KUNDE: confirm scope of delivery as a list — today documented only by photo; spare cup, nozzle set, cleaning accessories, case?
KUNDE: Is the cartridge version (0.3 l, previous model 140 101) still available for the 2.0? Automatic version of the Duoline?
Version not listed?Request nozzle, 110 V or accessories
Existing customer with an older unit (DUO Line, MK hot wax gun)?Request spare part or manual
In the system with …
Duoline 2.0 or pressure tank system — which system for which quantity?
| Feature | Duoline 2.0 | Hot wax pressure tank system |
|---|---|---|
| Material supply | 0.4 l cup on the gun | 12 l pressure tank (24 l optional) |
| Hose | Hose package gun–control unit (carries air and 40 V) KUNDE: heated/unheated? | core-heated material hose 7.5 / 10 m |
| Guns | 1 manual gun | 1–2 manual or automatic guns |
| Use | Cup quantities, mobile, manual workstation | Continuous demand, stationary system, automatic spraying machine, robot |
| Downtime | Material in the cup KUNDE: confirm for the 2.0 — documented only in the brochure of the previous version 01/2022 | Material stays in tank and hose and is re-melted |
Both systems share the same media approval (solvent-free, up to 95 °C). Whether the Duoline 2.0 gun itself can be operated on the pressure tank is not documented. KUNDE: clarify
A small spray booth for trials and sample production captures the spray mist: small spray booth.
Certificates and standards
Safety extra-low voltage 40 V
The gun is not operated at mains voltage; the control unit converts 230 V to 40 V. KUNDE: isolating transformer to VDE 0551 as on the previous model? Release the CE declaration of conformity for the Duoline 2.0 as PDF — not available online
DIN EN ISO 9001:2015
VISECO is certified to DIN EN ISO 9001:2015 by TÜV SÜD, reg. no. 12 100 34086 TMS, valid until 8 July 2029, scope "Development, manufacture and sale of heated spray equipment and components for coating technology".
No explosion protection: Solvent-based media are not approved.
Downloads
KUNDE: Operating manual Duoline 2.0 (DE / EN) and CE declaration of conformity are not available online, only the previous model 01/2011 on yumpu — release
Frequently asked questions about the Duoline 2.0
Does the hot wax spray gun need compressed air and electricity?
Yes, both. For atomization the Duoline 2.0 needs compressed air at 0.5–1.5 bar working pressure (recommended). The control unit is connected to 230 V (optional 110 V) and supplies the gun with 40 V safety extra-low voltage for cup and nozzle heating. According to VISECO, air consumption is low. KUNDE: state the value in l/min — answers the question "is a small compressor enough?"
Which waxes and oils can I process, and at what temperature?
Solvent-free waxes, oils, oil-wax combinations, release agents and greases with a melting point of 95 °C or below. KUNDE: Media approval taken from the 2011 manual (previous model) — does it apply to the Duoline 2.0? liability-relevant The control range is 20–95 °C. For a specific product (manufacturer, designation), send us the safety data sheet — we will check suitability.
May I hot-spray solvent-based paints? Is the gun explosion-proof?
No. The Duoline 2.0 is not explosion-proof; solvent-based media are not approved. Only solvent-free media are approved.
Which nozzle is the right one?
Standard is 1.2 mm. For low-viscosity media and a fine coat there is 0.8 mm, for more viscous media and higher throughput 2.0 mm. KUNDE: confirm nozzle ↔ medium assignment The air cap is available as flat or round jet.
Can the wax stay in the gun after work?
Non-reactive materials can remain in the cup after use and be re-liquefied at the next use — this is how VISECO describes it in the brochure of the previous version (01/2022). Oxidatively drying oils and waxes should be flushed out. The gun is designed for simple assembly and disassembly. KUNDE: confirm this statement for the Duoline 2.0; cleaning recommendation in two sentences
How much wax does a surface need?
The trade press quotes approx. 10 g/m² for the hot wax process of the predecessor company MK Heißwachstechnik (BM online 07/2000). KUNDE: confirm the current guide value for the Duoline 2.0 — otherwise delete the question; not in the FAQ schema until then
Can waxed parts be stacked immediately?
VISECO makes no statement of its own on this. Users report it in a forum (woodworker.de, 2010), and the wax manufacturer AURO states for its hard wax no. 171 in the hot-spray process that it can be polished within one hour instead of 1–2 hours with cold application. KUNDE: release a statement of your own or delete the question; not in the FAQ schema until then
What is the difference between the Duoline 2.0 and the pressure tank system?
The Duoline is the cup solution for manual workstations, the hot wax pressure tank system the tank solution for continuous demand. Material reserve, hose, guns and use are listed in the comparison on this page.
Inquiry Duoline 2.0
You will receive a technical reply or a quote from VISECO in Aichach, Germany. KUNDE: response time, e.g. "within two working days", and contact person with name/function
So that we can reply without further queries, please tell us:
- Medium (product, manufacturer) — attach the safety data sheet
- Melting point or desired processing temperature (°C)
- Quantity per day or per workpiece
- Compressed air available (bar, l/min)
- Mains supply 230 V or 110 V
- Application (wood / injection molding / beekeeping / other)
- Number of guns
- Company, contact person, phone
KUNDE: confirm or shorten the list of required details — what does VISECO really need for a quote? concept question 8
Helpful as attachment: photo of the workpiece or surface, information on the previous application method (cloth, brush, other gun).
How to reach us
E-mail address as plain text next to it: kontakt@viseco.de KUNDE: kontakt@ or info@? — for computers without a configured mail client. Inquiries in English or German.
Related products

Heated material supply for spray guns
Hot wax pressure tank system
Hot wax pressure tank system 12 l / 24 l — for high demand: heated tank, core-heated hose, 1–2 manual or automatic guns.

Spray booth for trials and samples
Spray booth
Small spray booth for trials and sample production — extraction for samples and small parts.

In use at …
KUNDE: approval for each mention
- Wax manufacturer AURO recommends the hot-spray process at 82 °C with the Duoline for hard wax no. 171.
- Naturhaus recommends the VISECO hot wax spray gun "Duoline" for the efficient processing of hard wax in trade and industry (naturhaus-direkt.de).
- Beekeeping suppliers in New Zealand and Australia carry VISECO equipment (Hive World, Beewise).









