Sponge Flat Belt
Sponge Flat Belt: cloth-skinned sponge flat belts for gentle, durable and quiet handling.
A GOODLY Sponge Flat Belt has a sponge layer on the running face, usually protected by a woven cloth skin. The cloth gives a tough, high-grip surface while the sponge underneath cushions and conforms to the product, so delicate goods are carried gently and quietly without marks. We build sponge flat belts to your width and length for conveyors, feeders and synchronised lines handling glass, electronics, printed sheets and food.
- ISO 9001 Certified
- 15+ Years OEM/ODM
- Engineer-to-Engineer Support
- Fast Global Shipping

What Is a Sponge Flat Belt?
A Sponge Flat Belt is a flat belt whose working face is covered with sponge, often protected by a woven cloth skin. The cloth gives a tough, high-grip surface while the sponge underneath cushions and conforms to the product. Sponge flat belts are used on conveyors, feeders and synchronised lines that must handle delicate goods quietly, gently and without leaving marks.
Because we manufacture in our own plant, we can advise on the right compound, cord and tooth profile for your machine before you order, and back it up with sample belts for your own testing.

Key Advantages of Our Sponge Flat Belt
Every belt is engineered, moulded and inspected in house, so the advantages below are backed by real production data rather than marketing language.
Tough Cloth Skin
A woven cloth face resists tearing and wear while keeping a high, consistent grip.
Cushions the Product
The sponge layer beneath absorbs contact forces and conforms to uneven products.
High Grip, No Marks
The cloth face holds products securely and releases them cleanly without marking.
Quiet, Smooth Running
Sponge damping and a soft face make for one of the quietest belts on the line.
Exact Dimensions
Made to your width and length for a ready-to-fit belt.
Factory Bonded
Sponge and cloth layers are bonded in our plant for a strong, lasting join.
Why Buyers Choose GOODLY as Their Sponge Flat Belt Supplier
GOODLY is a belt manufacturer in Guangzhou, China, not a trading company. We control the compound, the cord, the moulding and the final inspection, which is why our sponge flat belt keeps the same performance from the first sample to the last production batch. Send us a drawing or a used belt and we will match it, improve it if we can, and supply it on a schedule you can plan around.
- Sponge Flat Belt manufactured in our own Guangzhou factory
- ISO 9001 quality system with records for every batch
- Engineer-to-engineer support from sample to production
- Full material and dimensional reports on request
Sponge Flat Belt Support from Our Engineering Team
When you buy a sponge flat belt through GOODLY you deal directly with the people who make it. Our technical team works from your drawing, sample or machine details, recommends the compound and tension member, and follows the order through production and testing. This engineer-to-engineer support is the reason most of our customers reorder, and it is available before, during and after every shipment.
- Technical drawings and material reports supplied on request
- Samples produced for machine trials before volume orders
- One point of contact from enquiry to delivery
- Export packing and worldwide shipping handled in house
Sponge Flat Belt Construction and Specifications
A Sponge Flat Belt combines a base belt, a sponge layer and often a woven cloth skin. The main construction options are shown below.

- Belt typeSponge or cloth-skinned flat belt
- Width10 mm to 500 mm, slit to requirement
- Base thickness0.8 mm to 5 mm
- Sponge thickness1 mm to 20 mm
- FaceSponge with woven cloth skin, or open sponge
- FormEndless or open-ended
Sponge Flat Belt Performance Data
The figures below are typical values from our own testing. Your exact application may need a different combination, so tell us the load, speed and environment and we will confirm.
| Thickness tolerance | ±0.2 mm on the sponge layer |
| Face material | Woven cloth or sponge, high grip |
| Working temperature | -20 °C to +80 °C |
| Tear resistance | High, thanks to the cloth skin |
| Grip | High and consistent |
| Service life | Long under gentle-handling duty |

Sponge Flat Belt Materials and Reinforcement
We select the compound and the tension member together, because the material combination is what determines how a sponge flat belt performs over its working life.
Woven Cloth Skin
Tough, tear-resistant face that grips and protects the sponge.
Sponge Layer
Compressible sponge that cushions and conforms to the product.
Base Belt
Fabric, rubber or urethane base selected for the drive or conveyor.
Adhesive Bond
Strong bonding that holds the layers through years of flexing.
Industries That Use Our Sponge Flat Belt
From food and packaging to printing and automated assembly, the same engineering discipline is applied to every sponge flat belt we ship.
Custom Sponge Flat Belt Options
Almost every order we make is a variation. Tell us the machine and the product, and we will tailor the sponge flat belt to fit.
Cut to Size
Manufactured to your exact width and length for a clean fit.
Cloth & Sponge Options
Cloth-skinned or open sponge, in the thickness your product needs.
Cleats & Profiles
Cleats and guides bonded for feeding and timing duties.
Base Options
Flat, cord-reinforced or toothed base to suit the machine.

Our 8-Step Quality Control for Sponge Flat Belt
Each sponge flat belt passes the following checkpoints before it is packed, and the records are kept against your order number.
Sponge Flat Belt Frequently Asked Questions
Quick answers to the questions our customers ask most often about sponge flat belt.
What is a Sponge Flat Belt used for?
It feeds and conveys delicate goods such as glass, electronics, printed sheets and food that must be handled gently, quietly and without marks.
Why is a cloth skin used over the sponge?
The woven cloth gives a tough, tear-resistant and high-grip surface, protecting the softer sponge underneath and extending the belt life.
How thick can the sponge be?
We bond sponge from about 1 mm to 20 mm onto base belts from 0.8 mm, so we can match most feeding and conveying duties.
Can you supply an endless sponge flat belt?
Yes. We make endless belts for smooth running as well as open lengths with a joint kit for on-site fitting.
How long does production take?
Standard Sponge Flat Belts are typically ready in 7 to 10 working days after we confirm dimensions and materials.
Get Your Sponge Flat Belt Quotation Today
Tell us the product you handle, the sponge thickness and the line speed. Our engineers will recommend the cloth and sponge build and send a factory quotation.
GOODLY Belts · Guangzhou, China · OEM & ODM welcome · Samples available
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