Molding is a process used to make rubber and silicone products. It involves placing the rubber compound in a mold and then applying pressure to create the desired shape. This process can be carried out using hydraulic or mechanical presses and can produce a range of products including seals, gaskets and hoses. The use of molding technology offers several advantages, including consistent quality, high precision and the ability to produce complex shapes. In addition, the process is cost-effective as it requires low investment in tools and equipment. This makes it a popular choice in the production of rubber products for a variety of industries, including automotive, industrial and medical.

Product description


MAJK is continuously expanding its portfolio of seals and from 2020 we are producing not only by extrusion technology but also:

CM - (compression moulding) is a manufacturing technology in which the raw compound is inserted directly into the impression of a heated mould and when the mould is closed, the part is shaped and the rubber compound is subsequently vulcanised.

TM - (transfer moulding) transfer moulding is a production technology in which the raw compound is loaded into a chamber (tray) and when the mould is closed, the rubber compound is transferred from the chamber through the sprues to the footprint of the heated mould and then vulcanised.

IM - (injection moulding) injection moulding is a production technology in which the raw compound is inserted into the screw of a vulcanizing press, which fills a chamber (hopper) and then hydraulically injects from the chamber through sprues into the impression of a heated and closed mould. The rubber compound is then vulcanised. Production is carried out by experienced employees who worked in the companies Technical Rubber, SLZ, T-gum.


The properties of the products depend on the technology used and the choice of material. The most common uses are the engineering, paper, wood, mining, glass, electrical, chemical, and construction industries.


The properties of the products depend on the technology used and the choice of material. The most common applications are mechanical engineering, paper, wood, mining, glass, electrical, chemical, construction and other industries. The moulded products are produced in different shapes according to the mould and technology used. We currently own presses with plate sizes from 400x400 mm to 1100x1300 mm, workpiece weights up to 500 kg.

Material basis

These seals can be made from several types of homogeneous compounds and hardnesses - depending on the conditions of use. These are materials such as EPDM, NBR, SBR, FKM, MVQ. Specific weight ranges from 1.1 - 1.7 g/cm3 and hardness from 40 to 80 °ShA.

Elastomeric and sliding bearings

Dilation of construction concrete structures, in other words bridge bearings reinforced with sheet metal or sliding bearings with a PTFE layer.

Sheets, boards, mats, flooring

Rubber bands, boards are made of pure rubber or with the addition of fabric. The form can be in rolls of various lengths and thicknesses and in widths up to 1000 mm Their use is versatile. They are made from oil-resistant, heat-resistant, abrasion-resistant and other rubbers of different hardness and properties according to customer requirements. At the customer’s request, we cut the desired shape and cut the holes.

Rubberized products

wheels, rubber-metal dampers-silent blocks, iron-reinforced plates

Rubber membranes made of pure rubber or fabric-reinforced rubber.
Application: For water pumps, gas, fuel, dirty water and other liquids.

Rubber and rubber-steel lintels for stairs, overpasses, slippery driveways, etc.
Overlays are made according to the dimensions of the existing stairs. They are attached to the ground using screws with plastic pins. It is especially recommended for terrazzo, tiles or lattice stairs. They prevent slipping, especially in winter conditions. In the case of the version with a recessed sheet, they can have the so-called noses.

Rubber and steel-rubber shock absorbers (silentblocks)
We produce shock absorbers of various shapes and applications. As components for damping vibrations in machines and equipment, from simple pads under machines to more complex ones for damping the running of machines and motors. They are made of rubber with different vibration and noise dampening properties.

Plates reinforced with iron fulfill the expansion function most often in concrete constructions.

Rubber transitions, membranes, couplings, feet

transitions, membranes, couplings, feet, tubes, covers, suction cups

Grommets are used to join two pipes of different sizes or materials and provide a flexible, tight seal.

Membranes are flexible membranes that are used as baffles in pumps or valves to control fluid flow.

Couplings are used to connect two shafts, allowing torque to be transmitted while accommodating misalignment.

The feet are rubber components used as shock absorbers or to ensure the stability of the device.

Tubes, covers and suction cups are also made of rubber and are used for a variety of applications including sealing, cushioning and gripping.

Rubber sleeves, cases, dampers, legs

sleeves, cases, shock absorbers, legs, cuffs

Sleeves refer to any covering or covering for an object, usually long and cylindrical in shape.

Shock absorbers are mechanical devices designed to smooth out or dampen impact impulses, vibrations or oscillations in machines or structures.

Legs are additional parts that are used for support and movement in the furniture industry, structures and other industries.

Cuffs are among the most important types of seals for moving parts of hydraulic and pneumatic equipment for rectilinear sliding movement. They are also used in other industries.

Rubber bumpers – produced in forms or in thick profiles. Suitable for transport ramps or walls in warehouses, ports as protection when boarding.

Small sizes are also available, e.g. for doors, cranes or other technical equipment.

Polyurethane parts

Polyurethane (PU) is a versatile polymer material with a wide range of uses and applications. There are many different types of polyurethane products, each with its own unique properties and uses. Some of the most common types of polyurethane products are:

Polyurethane Elastomers: A rubber-like material with high wear resistance often used in products such as industrial seals, hoses and gaskets.

Polyurethane Coatings: Hard, durable coatings used on floors, wood finishes, and protective coatings on concrete and metal surfaces.

Polyurethane moldings: molded polyurethane parts used in many industries including automotive, electronics and medical.

Each type of polyurethane product has unique properties and uses, but all offer high durability, wear resistance and excellent insulating properties. Whether you are looking for a polyurethane elastomer or a strong and durable PU product, there is likely a solution that can meet your needs.

Other rubber products

seals for tanks, plate heat exchangers, air conditioning, lamps, washers, aprons, hood holder, sail tensioner, support under the hewer, rubber discs

“Other rubber products” refers to a wide range of rubber products used for various purposes. These include tank seals, which prevent leaks by sealing the joints between different parts of the tank; plate heat exchangers, which use flat rubber plates to transfer heat between fluids; air conditioning components such as gaskets and hoses that maintain the efficiency and safety of air conditioning systems; lamp seals that provide a tight seal between fixtures and fixtures; washers that are used to distribute loads or as spacers in various applications; and aprons that protect clothing and skin from dirt and contamination; washers that are used to distribute loads or act as spacers in various applications; aprons that protect clothing or skin from dirt and splashes; hood brackets that hold the hood of the car in place; sail tensioners to help check and adjust the tension of sail ropes; and lower supports that ensure the stability of the lifting equipment.