Surface treatment

We offer five high-quality paint systems in various colors to protect drives against corrosion and external influences.

Our corrosion protection system is designed in accordance with the corrosivity categories of DIN EN ISO 12944-2.

Geared motors, size 49 and above, are painted in RAL 7016 (anthracite gray) to corrosivity category C1 as standard. This ensures that they are protected against corrosion for installation indoors.

Geared motors, sizes 09 and 39 with an aluminum housing are supplied unpainted as standard.

All of the unpainted parts of the products are treated with corrosion protection agents for 6 months.

Note:

Corrosivity Category C1 is not suitable for ambient temperatures below -20 °C

Overview, surface treatment

Corrosivity category	Paint system			Description	Order code
	Primer	Intermediate coat	Top coat
Surface protection
Gearbox housing manufactured out of aluminum¹⁾
C1/unpainted (standard)	–	–	–	• Indoor installation • Heated buildings with neutral atmospheres • Resistant to greases, conditional resistance to mineral oils, aliphatic solvents • Standard paint finish	L00
C1 Normal environmental stress	–	–	1-component hydro paint		L02
Gearbox housing manufactured out of cast iron²⁾
C1 Normal environmental stress	–	–	1-component hydro paint	• Indoor installation • Heated buildings with neutral atmospheres • Resistant to greases, conditional resistance to mineral oils, aliphatic solvents • Standard paint finish	L02
All geared motors
C2 Low environmental stress	2-component polyurethane	–	2-component polyurethane	• Indoor and outdoor installation • Unheated buildings with condensation, production areas with low humidity, e.g. warehouses and sports facilities • Atmospheres with low pollution, rural areas • Resistant to greases, mineral oils and sulfuric acid (10 %), caustic soda (10 %) and some resistance to aliphatic solvents	L03
C3 Medium environmental stress	2-component polyurethane	–	2-component polyurethane	• Indoor and outdoor installation • Production areas with high humidity and some air contamination, e.g. food production areas, dairies, laundries and breweries • Urban and industrial atmospheres, moderate contamination from sulfur dioxide, coastal areas with low salt levels • Resistant to greases, mineral oils, aliphatic solvents, sulfuric acid (10 %), caustic soda (10 %)	L04
C4 High environmental stress	2-component epoxy zinc phosphate	–	2-component polyurethane	• Indoor and outdoor installation • Chemical plants, swimming pools, wastewater treatment plants, electroplating shops, and boathouses above seawater • Industrial areas and coastal areas with moderate salt levels • Resistant to greases, mineral oils, aliphatic solvents, sulfuric acid (10 %), caustic soda (10 %)	L20
C5 Very high environmental stress	2-component epoxy zinc phosphate	2-component epoxy iron mica	2-component polyurethane	• Indoor and outdoor installation • Buildings/areas with almost constant condensation and high pollution, e.g. malt factories and aseptic areas • Industrial areas with high humidity and aggressive atmosphere, coastal areas and offshore environments with high salt levels • Resistant to greases, mineral oils, aliphatic solvents, sulfuric acid (10 %), caustic soda (20 %)	L05

1) Helical gearboxes D/Z19 to D/Z39, parallel shaft gearboxes F29 and bevel gearboxes B29 and B39

2) The bevel gearbox B49 is supplied painted as standard

Corrosivity category	Paint system			Description	Order code
	Primer	Intermediate coat	Top coat
Primer				Ability to be overpainted
C2 G	2-component polyurethane	–	–	• 2‑component polyurethane paint, 2‑component epoxy paint and acid‑hardening paint, 2‑component acrylic paint	L01
C4 G	2-component epoxy zinc phosphate	–	–	• 2‑component polyurethane paint, 2‑component epoxy paint and acid‑hardening paint, 2‑component acrylic paint	L09
Unpainted	–	–	–	• Plastic paint, synthetic resin paint, oil paint, 2‑component polyurethane paint, 2‑component epoxy paint	L00

Surface pretreatment

For especially demanding applications, the drives can be additionally pretreated in order to achieve a uniform paint coat thickness, also at hidden and at difficult to access locations.