Special profiles – hot-rolled, cold-rolled or cold-drawn

• Ball and roller guides
• Miniature rails
• Heavy duty rails
• Telescopic rail guides
• Shaft supports
• Linear axes

Modified steel grades with the highest degree of purity are used for profiles in linear technology. This results in linear guides with excellent properties, such as

• very good hardenability
• high wear resistance
• realisation of high load capacities
• minimum distortion during further processing

ZOLLERN uses inductive hardening to achieve partially high surface hardnesses up to 64 HRC in the edge area. The unhardened areas retain their positive properties from the cold forming and can be machined very economically.

ZOLLERN steel profiles are used in almost all areas of vehicle construction - as profiles for

• Injection systems
• Connection components
• Adjustment systems
• Steering systems
• Safety systems
• in the gearbox technology and pump technology, for example for vane pumps
• Components for e-mobility

ZOLLERN steel profiles are individually designed and produced for the most diverse applications. The profiles an also be reliably reproduced in series with narrow tolerances. The targeted materials selection and special heat treatments simplify further machining, even for complex geometric profile shapes. The pressure tightness of the resulting produced components is guaranteed via eddy current and ultrasonic testing, even for machining steels.

From components in passenger transport to profiles for securing platforms and tracks using screen doors, our steel profiles offer very high dimensional accuracies, an optimal strength ratio and a high surface quality. They are therefore ideal for diverse applications in rail transport.

ZOLLERN steel profiles are used in machine tools, printing machines and pumps, among other things, as

• Clamping jaws
• Pneumatic clamping elements
• Clamping body for freewheels
• Gear profiles
• Scraper and chip deflectors for machine covers
• Flat guide rails, terminal strips
• Gripper profiles in robotics
• Sliding blocks
• Splined shafts, polygon shafts

Narrow radii, undercuts and the smallest dimensional tolerances are realised. Gears can be manufactured in a wide variety of gearing variants. Particular advantages result from components that have non-symmetrical special gearing, e.g. half pinions, special pinions. Thanks to the near-net-shape production, complex machining processes can often be done away with.

Large series can be economically implemented by using steel profiles. The amount of machining effort is minimised by using the profiles.

Steel profiles for fittings and locks, as

• Pinion profiles for door closers, door openers, door stoppers
• Housing for padlocks
• Profiles for door and window locks
• Special profiles for sliding blocks

Flawless surfaces and excellent mechanical properties characterise the profiles. They ensure the functional safety and durability in application as

• keybars
• spring-fingers
• dovetail bars and
• I-bars
• pole shoe profiles

There are many possible applications of special profiles in the construction and construction machinery industries:

• Kelly profiles for kelly bars in drilling technology
• Splined shafts
• Special profiles for scaffolding and façade construction (construction elements consisting of several profiles are also possible)
• Formwork profiles
• As hydraulic housing
• For forklift truck attachments
• For machines in concrete block manufacture

The profiles impress with their strength, wear resistance, sub-zero toughness, durability and high quality. Adapted profile shapes and special surface treatments create very good prerequisites for the following welding work

• Breechblocks
• Triggers
• Percussion pieces
• Gas pressure loader
• Sight rails and other products

made from ZOLLERN steel profiles are proven in use for hunting and sporting guns.

The uninterrupted fibre flow and the excellent homogeneity of the hot and cold formed steel profiles allow for a high fatigue strength. The selected combination of material and tempering processes used on ZOLLERN profiles convinces with strengths of up to 1,200 MPa. These profiles can therefore even withstand extreme dynamic stresses. ZOLLERN steel profiles are an economic alternative to traditional production technologies in the hunting and sporting guns industry.

Our special profiles are aimed at the high standards in medical technology. They have an excellent surface quality and are made of high-quality materials, as well as in implant quality.

The profiles made of stainless steels are ideal for technical medical parts and devices. Other materials, such as titanium, are possible.

ZOLLERN steel profiles work reliably in flat knitting machines, circular knitting machines, spinning machines, weaving machines, knitters and carding machines.

As

• Take-off rolls
• Thread guide
• Deflecting aids
• Needle rails
• Slide rails and
• Under-apron bridge elements

they provide quick and precise movements.

The surface quality of the profiles meets very high demands in terms of function and appearance.

Steel profiles are used for recycling, keeping clean and crushing in various forms, such as:

• Knife holder
• Chopping blades
• Terminal strips
• Cutting bars
• Chip deflector
• Rake profiles for sewage treatment plants

In sectors such as

• agriculture and forestry
• the paper industry or also
• the waste and recycling industry.

The partially inductively-hardened, inductively through-hardened or tempered profiles are particularly wear-resistant. ZOLLERN steel profiles are safe, high-strength and weight-saving.

ZOLLERN supplies splined shafts from tempered steel for universal joints and special profiles according to the relevant standards, such as DIN ISO 14.

There are many applications for special profiles – there are always new possible applications – get in touch with us directly and ask!

With hot rolling, the raw material is inductively heated and rolled into a raw profile in several automated pass sequences

With hot rolling, the raw material is inductively heated and rolled into a raw profile in several automated pass sequences.

With cold drawing, the pre-formed hot rolled profile is drawn one or multiple times by a carbide die and brought into the desired shape. Stress introduced is neutralised between the forming steps via heat treatment.

With cold rolling, a wire rod is brought into the specified final contour at room temperature by rolling. Several rolling units in a production line automatically perform this process and give the profiles a high surface quality. The process is particularly well-suited for manufacturing small profile geometries, which are needed in larger quantities.

ZOLLERN uses inductive hardening to increase the wear resistance of the profile surfaces. Hardening depths of 0.5 to 5 millimetres and hardness values of up to 64 HRC are achieved.

The steel profiles are processed further in a precise way, from the mechanical machining to the surface finishing. ZOLLERN supplies custom products in different stages of production up to ready-to-install components. Hollow profiles with internal geometry or welded profiles are also available.