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Sealing Solutions

A powerful complete CNC system for manufacturing seals of up to 520 mm (20.5 inches) in diameter Equipped with an effective 8-position turret for rapid tool change and short set-up times


The quality of a finished seal is always the result of successful interaction between the properly suited material and the seal’s design. Seal Maker’s systems are perfectly harmonized to each other. In addition to the “standard series”, Seal Maker also has the option of modifying a seal according to the exact requirements an application calls for.

Products

Rod Seals
The rod seal is the most critical seal on any type of fluid power equipment preventing leakage of fluid from within the cylinder to the outside. Leakage through the rod seal can reduce equipment performance, and also in extreme cases can cause environmental issues.
Single Acting Piston Seals
Piston Seals or Piston Rings are used in hydraulic cylinders for fluid sealing and are designed to ensure that pressurised fluid does not leak across the cylinder head as the system pressure pushes the piston down the cylinder bore.
Double Acting Piston Seals
Piston Seals or Piston Rings are used in hydraulic cylinders for fluid sealing and are designed to ensure that pressurised fluid does not leak across the cylinder head as the system pressure pushes the piston down the cylinder bore.
Vee Packs
Vee pack sets are multiple-lip (chevron) seals, usually composed of a male and female adaptor and a group of three or five vee rings, are popular for sealing rods and pistons in medium to heavy duty applications and are compatible with both single and double acting cylinders.
Wipers
Wipers are installed in the sealing configurations of hydraulic cylinders to prevent contaminants such as dirt, dust and moisture from entering the cylinder as they retract back into the system.
Bearings
The function of the Bearing or wear ring is to guide the piston and piston rod of a hydraulic cylinder, as well as to withstand arising side loads. At the same time, it prevents any metal-to-metal contact, which will damage and score the surfaces and eventually cause seal damage, leakage and component damage.
Unitized Pistons
The steel piston has a non-metallic bearing material moulded over the outer diameter using a special proprietary process. It is then finish machined to provide a tight tolerance with the bore of the tube and also for the installation of the chosen seal.
Swivel Seals
Swivel seals are designed for slow rotary applications, such as the hydraulic swivels, which allow the transmission of pressurised services between the chassis and body of mobile hydraulic equipment.
Rod Buffer Seals
The primary purpose of the buffer seal is to protect the main rod seal from the effects of shock pressure loading.
PTFE Portfolio
PTFE portfolio is a fit-for-purpose solution designed primarily for dynamic sealing applications.

POLYURETHANE

Seal Maker’s polyurethane semi-finished products particularly stand out due to their high quality material and show a prolonged service life in many applications compared to other seal and semi-finished product manufacturers.
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Color Description Trade Name Application Temp. Hardned at 20°C Download
PU red PU red U500-R95 -30 to +125°C Shore A 95 +/-2 Material Data Sheet
PU petrol PU petrol U505-P79 -25 to +100°C Shore A 79 +/-3 Material Data Sheet
PU light green PU light green U510-G88 -30 to +115°C Shore A 90 +/-2 Material Data Sheet
PU orange PU orange U520-OR95-HT -30 to +135°C Shore A 95 +/-2 Material Data Sheet
PU light blue PU light blue U530-B95-LT -50 to +105°C Shore A 95 +/-2 Material Data Sheet
PU violet PU violet U540-VI95-CR -30 to +115°C Shore A 95 +/-2 Material Data Sheet
PU dark red PU dark red U550-GM 95 -30 to +125°C Shore A 95 +/-2 Material Data Sheet
PU blue PU blue U570-D57 -30 to +125°C Shore D 57 +/-2 Material Data Sheet
PU grey PU grey U580-D57-G -30 to +125°C Shore D 57 +/-2 Material Data Sheet
PU green PU green U203-G95 -30 to +105°C Shore A 95 +/-2 Material Data Sheet

ELASTOMERS

Elastomers or rubber materials have an extremely wide range of thermal and chemical durability and are indispensable in seal technology.
NBR | EPDM | FPM | TFE/P | SILIKON
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Color Description Trade Name Application Temp. Hardned at 20°C Download
NBR black NBR black N107-B85 -25 bis +100°C Shore A 85 +/-5 Material Data Sheet
NBR 95 black NBR 95 black N109-B95 -25 bis +100°C Shore A 95 +/-5 Material Data Sheet
NBR FDA white NBR FDA white N111-W85 -22 bis +100°C Shore A 85 +/-5 Material Data Sheet
H-NBR black H-NBR black HN112-B85 -25 bis +150°C Shore A 83 +/-5 Material Data Sheet
H-NBR RGD black H-NBR RGD black HN900-B85-RGD -20 bis +150°C Shore A 86 +/-5 Material Data Sheet
H-NBR RGD LT black H-NBR RGD LT black HN901-B85-RGD -40 bis +150°C Shore A 83 +/-5 Material Data Sheet
EPDM black EPDM black E131-B85 -50 bis +130°C Shore A 85 +/-5 Material Data Sheet
EPDM FDA white EPDM FDA white E132-W85 -50 bis +100°C Shore A 85 +/-5 Material Data Sheet
EPDM KTW black EPDM KTW black E134-W270 -45 bis +110°C Shore A 88 +/-5 Material Data Sheet
FPM brown FPM brown F109-BR85 -20 bis +210°C Shore A 84 +/-5 Material Data Sheet
FPM FDA brown FPM FDA brown F110-BR85 -25 bis +210°C Shore A 85 +/-5 Material Data Sheet
FPM black FPM black F111-B85 -25 bis +210°C Shore A 85 +/-5 Material Data Sheet
FPM-RGD black FPM-RGD black F800-B85-RGD -30 bis +210°C Shore A 88 +/-5 Material Data Sheet
TFE/P black TFE/P black AF101-B85 -15 bis +210°C Shore A 86 +/-5 Material Data Sheet
Silicone FDA red Silicone FDA red S102-R85 -55 bis +210°C Shore A 85 +/-5 Material Data Sheet
Silicone FDA blue Silicone FDA blue S103-BL85 -55 bis +180°C Shore A 85 +/-5 Material Data Sheet

PLASTICS

Hard elastic and fluorinated thermoplastics, such as used in manufacturing support and guide rings, as well as special and pre-loaded seals, round off the product range of Seal Maker’s semi-finished products.
POM | PA | PTFE | PEEK | UHMW-PE | diverse compounds
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Color Description Trade Name Application Temp. Hardned at 20°C Download
PTFE-P FDA white PTFE-P FDA white T101-W -200 bis +260°C Shore D 51 - 60 Material Data Sheet
PTFE-F grey PTFE-F grey T105-G -200 bis +260°C Shore D 55 - 64 Material Data Sheet
PTFE-40% bronze brown PTFE-40% bronze brown T110-BR40 -200 bis +260°C Shore D 62 - 67 Material Data Sheet
PTFE-25% carbon grey PTFE-25% carbon grey T125-C25 -200 bis +260°C Shore D 62 - 67 Material Data Sheet
POM FDA white POM FDA white P101-WE -50 bis +100°C - Material Data Sheet
PA FDA natural PA FDA natural A112-WC -40 bis +90°C - Material Data Sheet
PEEK brown PEEK brown PK100-CN -50 bis +250°C Shore D 90 Material Data Sheet
UHMW - PE white UHMW - PE white PE1000-HD -200 bis +80°C Shore D 60 - 65 Material Data Sheet

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