Felt Seal
Felt seal is a material that is used to seal, join or pack and fill the gap between two things or objects together to prevent leakage. It is placed between two surfaces of objects. It creates a sealing barrier between any moving and stationary surfaces in rotary or linear applications, stopping leakages, closing and filling up the space gaps, and locking them tight securely.
Felt seal material
Hardness:
Depending upon the compression pressure required to maintain between two
joining objects Felt seal material is manufactured in different densities or
hardness. Manufactured in different types of stiffness having a minimum
density of 0.16 grams per cubic cm which is classified as extra soft
material. Softness signifies it will quickly absorb any oil and also
quickly release oil and other lubricants. Its retention capacity is very
low. For general purpose applications, a medium or firm hard quality
of felt seal material having a density of 0.34 to 0.36 grams per cm cube with good flexibility
and bendable with little elasticity is required, with semi-rigid
hardness it is not too compact and easily flexible to any shape required
and easy handling. We also manufacture high density, a compact and rigid
quality which is extra hard and has a density of 0.45 to 0.60 grams per
cm3. In many applications where sealing felt is subject to wear and tear a
stiff hard material is used. Durability and life of a compact and rigid
quality are always higher compared to the general medium.
Thickness: We manufacture sealing felt in a wide range of thickness, starting from thin 1 mm to high 50 mm. In general inventory, we stock 3 mm Thick (1/8” Inch), 6 mm Thick commonly known as Quarter Inch 1/4”, 8 mm (5/16” Inches), 10 mm (3/8” Inch), 12 mm Thick commonly known as Half Inch 1/2”, 15 mm (5/8” Inch), 20 mm (3/4” Inch), and 25 mm Thick (1” One Inch).
Color:
The natural color is off-white, a cream shade which is standard color is
always available in ready stock with instant and quick delivery.
Whiteness can be further enhanced by bleaching it to pure white. Other
color like black felt seal and grey felt seal is manufactured and used. It can be
dyed to any color any shade as per buyer requirement.
Fiber:
Felt seal material can be made from different fibers like wool, cotton
and polyester. Cotton seal is made from long staple cotton fiber,
synthetic fibers like polyester, nylon is also used in manufacturing as
per requirement. Different synthetic fibers like polyester, poly-wool
viscose are also used in the manufacturing process. Synthetic fibers do not
have natural self-felting properties so they are mechanically felted with
help of needles that are non-woven, they are waterproof and best suited for
door felt seal. It can also be weaved and woven they also require
relatively little shaft pressure to function effectively.
Wool felt seal
Wool felt seal is manufactured from wool fiber, wool is a natural fiber having natural felting properties, and it is an ideal environment-friendly material with many uses. Fine sheep wool hair fibers are pressed and compressed heavily to form into a pressed wool pad. These wool seal are made in precision thickness with accuracy. Wool fiber has high temperature resistance and it does not melts or cracks unlike any synthetic fibers.
Polyester Felt Seal
Felt seal can be from Polyester fibers through Needle felting process is called Polyester felt seal. 100 % Synthetic fiber are needle felt through mechanical process. We can also use other fibers like Rayon (Viscose) in manufacturing. Polyester felt seal are used in water contact applications like dryer drums.
Felt Seal Shapes & sizes
As a felt seal manufacturer and supplier we can produce in a wide variety of shapes, designs, and many different sizes. Shapes like a square where both the sides have the same and equal side measurements, Trapezoidal and with correct dimension shape will fit easily. Rectangular shape with perfect accurate right angles with fit as spacers into the gaps like a pad which is used to close down all the air gaps. Padding to reduce noise and stop fluid leakage. The strip can be used in temperatures ranging from -40 to +100° degrees. Tape and strips are cut from sheets and rolled into a coil shape. Tapered Cut strips for triangular space gaping, cut with angle accuracy in degree like 30°, 45°, 60°, and 90° as per specification or requirement. Made in round and circular shapes like the Felt seal ring which is a round circular ring shape like washer having Outer Diameter and Inner Diameter and is used in industrial application. In Sphere, cylinder, and oval shape like sealing plug is used in pipes and hole fits and adjusts tightly also used to clean all the dirt and dust from the clog and jammed pipes. Rope sealing for concave and convex designed application. Manufactured in cord and rope shape in different diameters and lengths for wicking and oil transfer. Cutting is done with full accuracy with dice under heavy pressure.
Features and Advantage
Where application demands high qualities of compression, elasticity,
resistance to aging and wear, high absorption, and low abrasion, only
felt seal are specified. It has high splitting resistance, it is durable
and resilient. If the operating temperatures are normal and conditions
are good they are highly economical, normally requiring replacement only
when the machine is overhauled. It maintains a continuous sealing
pressure and seals the surface without any damage.
Commercial quality has good bearing
protection characteristics for bearing housing and provides storage for
oil and lubricant
even if they dry out it starts polishing and protects the shaft from any
damage. To enhance the performance, it can be impregnated with wax or
grease and petroleum oil to increases the resistance to water and dirt.
Lip seals and squeeze packing always fit tightly they do not require any
pressure or compression but wool felt seal require relatively a little
shaft pressure to fit tightly and function properly. We manufacture felt
seal with
precision, with accurate thickness and correct precise size with
accuracy and under minimum tolerance and variation.
We are felt seal manufacturer and supplier as per
International standard specifications like American Standards - SAE F-1,
F-2, F-3, F-5, F-7, F-10, F-11, F-12, F-13, F-15, F-50, F-51. High-Quality
Wool with accuracy in dimension and precision makes our
product unique and exclusive. Germany
Standard in accordance to DIN 5419 and DIN 61200 and 61206.
All Engineers in their drawing refer to
Industrial Standard grade quality which is the technical grade and is best suited
for all machine and engineering sealing applications. Machine felt seal
can bear against the mating surface under pressure, they are solid heavy
duty felt seal which has longer life compared to normal and regular.
Self-adhesive coating with peel-off
sticker type feature can be done on one or both sides.
Compared to other rubber products our felt seal will work even at very
low temperatures. Unlike squeeze packings, plastic, and rubber which
becomes brittle and turns to powder its life is very good.
Our felt seal offer the following advantage :
• Available in all types of hardness from soft, sponge type, easily
compressible with full flexibility and ability to conform to
irregularities on the rotor and housing surfaces.
• Cost effective and economical seal as compared to other products
available in the market.
• Unlike Natural rubber or synthetic rubber which either melts or gets
brittle over time, our felt seal is made from Wool fiber which neither
gets brittle or melts.
• It is known for its durability and resistance to abrasion, weathering,
and other chemicals.
• It is suitable for Oil absorption and dust prevention.
• It has long and extended life as compared to any other products. They
are very effective seal and are suitable for general-purpose
applications.
Uses & Application :
Wool Felt has long been used for sealing applications because of various favorable properties such as wicking and oil absorption properties and resilience. It can retain or separate fluids, keep out contaminants, and maintains pressure. Even for filtration purposes, it is very effective, it can filter small particles, and for filtering very small particles it can be dipped into lubricants. Compressed Wool pad material is used sometimes where there is no rubbing contact also providing the essential wicking and lubrication function.
Felt packing seal :
Felt packing seal is a compressed woolen packing that also provides packing function. It keeps the exact sealing pressure that is required for cushioning purposes thereby also serving the important cushioning function.
Bearing felt seal:
Bearing felt seal are used in bearing to prevent dust and any other foreign matter from entering inside the bearing. .
Crusher felt seal:
In mining industries where ore is mined and grinded and blended, an ore crusher machine is required. A crusher machine also called a grinding mill which crushes the ore and crushing ore requires a heavy-duty tough machine. Similarly, a high-quality bearing is used on them. Those bearing are very expensive and to work in such dusty harsh environment dust protection is required. Grinding can be done in various types of mill. Different types of mill like Ball mill where it is used for trunnion bearing sealing, Rod mill, Autogenous mill, SAG mill feed chute felt seal, pebble mill, high pressure grinding rolls, tower mill, Jaw crusher, jaw breaker, Roll crusher, roll grinder, Stamp mill, hammer mill, roller mill. Crusher where bearing uses ball mill felt seal for protection. Sealing felt is used in crusher machine as crusher felt seal, hammer mill seal.
Dryer Felt seal:
Dryer felt seal closes the gap between the drum and dryer cabinet in the
washing machine, you will find edges of the drum are covered with them.
It has a very important function in the tumble dryer. Without it, the
clothes can get stuck in the gap between the drum to the inner cabinet
of the machine and it will tear the clothes during the spinning
operation. It also prevents leakage and maintains the heat inside the
dryer drum which is very important for quick and effective drying. Dryer
drum felt seal also helps in maintaining the uniform temperature as per
operation settings preventing any leakages, it is very difficult to
maintain as the air and heat can easily escape outside. It also prevents
the metal edges of the front dryer drum from making direct contact with
the front panel of the unit.
Cylinder Felt Seal -
This part is located between the back of the drum and the rear dryer
panel.
Don't worry if your dryer seal came off you can glue it back or replace
it
perfect suitable matching and ideal replacement for seal replacement
for all companies.
Tractor Parts felt seal
Felt seal is regularly used in Agriculture tractors as
Agricultural Felt Seal. They
are cut into ring and washer and used as spares parts for oil sealing. Used as
• Front Wheel Hub felt seal
• Rear Axle felt seal
The seals can be used at higher speeds, but a small gap forms between
the felt and the shaft. As a result the seals become non-rubbing
gap-type seals. We can manufacture and supply wide range of Agriculture
Felt Seal offering in different
sizes, shapes and thicknesses. Our Felt Seal is made using High and fine
quality of wool making this product is highly demanded by the clients for
its extensive features like long working life, easy use and competitive
pricing.
Rotary Airlock Valve (RAV) Seal :
In pneumatic conveyance system Rotary Airlock Valve provides easy and free flow transfer of dry bulk solids like powders, granules, pellets, nuggets, dust, cuttings, and crystals from a bin, silo, hopper or cyclone through its conveying system to an adjacent machine in their manufacturing process. In order to maintain an airtight or dust-tight environment, Rotary airlock valves uses Wool felt seal between different pressure zones in material handling and processing systems.
Other Uses :
•
Gunite Machine and Shotcrete machine as bearing seals as dust prevention
and oiling of bearing.
• In Street lighting and Luminaries a packing/
liner seal is required for tight fitting of lamp glass case with the fitting
by felt seal strip that seals for use in all weather.
• In the coal plant, where coal is baked and in
all types of raw mineral baking industrial ovens like battery plants, it
is used as door seals.
• In Kilns and furnace sealing, we offer felt seal for use with a
supporting ring and Girth Gear Guard Segment with fixing ring assembly.
• In pumps and valves as mechanical felt seals for hot vapour sealing.
• In
locomotives, motor truck, for the partition between engine & traction
motor electrical generator, during assembly in gear case pinions
opening.
• Felt cord seal for Cocoa Butter Press: In a cocoa butter press, a felt
seal or felt gasket prevents thick cocoa liquor from leaking through
moving parts while allowing the liquid fat to drain. The pressing plate
is sealed by placing a felt cord between the pressing plate and the pot
to prevent liquor flowing out during pressing. It acts as a physical
barrier that holds back solid particles but allows pure, liquid cocoa
butter to seep through under high pressure.
• Felt Seal for piston in hydraulic cylinder.
• Door felt seal
• Window felt seal
• End seals for Doctor blade chamber
• Plummer block felt seal
• Piston felt seal
• Felt oil seal
• Felt grease seal
• Felt seal for shaft - transmission
felt seal
• Felt wiper seal
• Felt dust seal
• felt seal in weaving machine loom
• Felt seal for Wind Turbine Generator
• Felt seal brake servo drive cover : A felt ring seal in a brake servo
booster stops dust and dirt from entering the vacuum chamber when
someone pushes the brake pedal.