Anti Static Conveyor Belt Manufacturer

We manufacture anti static conveyor belts with conductive rubber compounds for coal, grain, biomass, fertilizer, and other dust-producing bulk materials. You can specify the required electrical resistance and combine anti-static performance with flame, oil, heat, or abrasion resistance.

What Is an Anti Static Conveyor Belt?

An anti static conveyor belt, also known as an ESD conveyor belt, uses conductive rubber compounds to limit static charge accumulation during operation. We integrate the anti-static property into the belt covers, allowing charges generated by materials, pulleys, and rollers to transfer toward a properly grounded conveyor structure.

You can combine anti-static performance with flame, oil, heat, or abrasion resistance according to your conveyed material and operating environment. The belt provides a charge-transfer path, while effective static dissipation still depends on the electrical continuity and grounding of the complete conveyor system.

Anti-Static Performance of Our Rubber Conveyor Belts

The finished anti static conveyor belt can be produced to meet the electrical resistance limit required by ISO 284. Resistance at or below 3 × 10⁸ Ω prevents static charges from remaining continuously accumulated on the running belt.

Conductive Rubber Creates a Charge-Transfer Path

Conductive materials are distributed throughout the rubber covers, allowing charges generated between the belt, material, pulleys, and rollers to move through the belt toward the grounded conveyor structure instead of remaining concentrated on the belt surface.

Finished Belt Resistance ≤ 3 × 10⁸ Ω

Anti-Static Function Extends Through the Rubber Cover

The anti-static property comes from the conductive rubber compound rather than a temporary coating applied only to the belt surface. Normal surface contact and gradual cover wear therefore do not immediately remove the conductive path.

Anti-Static Requirements Confirmed for Your Application

The nylon conveyor belt is built with a multi-layer rubber and fabric structure. Each layer plays a specific functional role in load support, wear resistance, and operational stability during continuous conveying.

Resistance Requirement Based on Your Specification

We first review the maximum resistance specified for your project and confirm whether the selected conductive rubber compound can achieve it consistently in finished belt production.

Conductive Rubber on the Required Belt Surfaces

The carrying cover, pulley cover, or both covers can use conductive rubber according to the required belt structure. This provides a path for charges to move from the belt surface toward the rollers, pulleys, and grounded conveyor frame.

Agreed Finished-Belt Acceptance Conditions

Before production, we confirm the resistance limit, test method, test surface, and sampling arrangement with you. The finished anti-static rubber conveyor belt is then tested against the agreed conditions.

Confirm Your Anti-Static Belt Requirements

Send us your required resistance, conductive surface, and test conditions. We will confirm the suitable anti-static conveyor belt configuration before production.

Electrical Resistance Standards for Anti Static Conveyor Belts

Different standards evaluate different belt structures and application environments. We manufacture and test your anti static conveyor belt according to the standard stated in your technical specification. The resistance value, test direction, sample structure, and acceptance method must follow the same agreed standard.

Standard	Applicable Product or Environment	Electrical Resistance Requirement	Use on This Page
ISO 284 / EN ISO 284	Heavy-duty rubber conveyor belts, excluding light conveyor belts	Maximum finished-belt resistance ≤3 × 10⁸ Ω	Primary standard for general industrial anti-static rubber conveyor belts
EN 12882	General-purpose above-ground conveyor belts	Anti-static performance according to EN ISO 284, with additional flame, drum-friction or fire-propagation requirements depending on the selected category	Used when anti-static and fire-safety properties are required together
EN 14973	Conveyor belts used in underground installations	Electrical surface resistance ≤300 MΩ, together with underground flammability and friction-safety requirements	Used only when the project specifies underground mining requirements
ASTM D991	Conductive and anti-static rubber materials or rubber products	Measures volume resistivity; the acceptance value must be specified by the customer	Useful for verifying conductive rubber compounds, but not a substitute for finished-belt testing under ISO 284
ISO 21178	Light conveyor belts, including some PVC, PU and precision ESD belts	Measures surface resistance, volume resistance, and longitudinal/transverse resistance; it does not establish one universal resistance limit for all belts	Not normally applicable to our heavy-duty anti-static rubber conveyor belts

Electrical Resistance Testing for Finished Anti Static Conveyor Belts

We test samples taken from the finished vulcanized conveyor belt rather than relying only on the resistance of uncured rubber compounds. This verifies whether the complete belt delivered to you meets the resistance requirement confirmed for the order.

Sample From the Finished Belt

Test pieces are cut from the completed belt and linked to the corresponding production batch. When your specification requires both belt surfaces to be verified, samples are prepared for the carrying cover and pulley cover separately.

Condition the Test Pieces

The samples are kept under the temperature, humidity, and conditioning period required by the selected test standard. This reduces resistance variation caused by testing samples immediately after production or under changing workshop conditions.

Prepare the Test Surface

The selected surface is kept clean and free from release agents, dust, oil, moisture, or other contamination that could change the contact between the electrode and rubber surface.

Place the Electrodes and Measure

The electrodes are placed on the specified belt surface using the arrangement required by the selected standard. Resistance is measured at the agreed positions rather than taking only one reading from one part of the belt.

Compare Results With the Required Limit

Each recorded resistance result is evaluated against the maximum value stated in your project specification. When ISO 284 is used as the acceptance basis, the finished belt must meet its specified maximum resistance requirement.

Retest After an Abnormal Reading

If one position produces an abnormal result, we first check the sample surface, electrode contact, test environment, and equipment condition before repeating the measurement. A repeated result exceeding the agreed limit cannot be accepted as compliant.

Typical Applications of Anti Static Conveyor Belts

Our anti static conveyor belts are mainly used for dry bulk materials that can generate static charge and combustible dust during loading, transfer, and continuous conveying. We manufacture the belt according to your required resistance and additional fire-safety conditions.

Anti Static Conveyor Belts for Combined Operating Requirements

Anti-static performance usually works together with another primary belt requirement. We select the rubber compound according to your conveyed material, operating temperature, wear level, and fire-safety specification while retaining the confirmed electrical resistance.

Production Control for Stable Anti-Static Performance

We control the formulation and mixing conditions of the conductive rubber so the proportion and distribution of conductive materials remain consistent between batches. This provides a stable material base for the finished anti static conveyor belt to meet the confirmed resistance requirement.

The conductive rubber is then calendered into a continuous cover layer and vulcanized under controlled temperature, pressure, and time. This reduces local resistance variation caused by uneven cover thickness or inconsistent curing across the finished belt.

FAQs

Can Anti-Static Rubber Be Used on Fabric and Steel Cord Belts?

Yes. Conductive cover compounds can be used with EP fabric, NN fabric, and steel cord constructions when the full belt design is compatible. The carcass strength, cover thickness, bonding system, flexing conditions, and required electrical resistance must be considered together. We do not treat anti-static performance as a separate surface addition because the conductive covers still need to bond securely to the selected carcass and maintain their performance during repeated operation.

Does the Splice Need Exactly the Same Anti-Static Rubber as the Belt?

Not always. On a well-grounded above-ground conveyor, one splice made with rubber of slightly different resistance usually has only a local effect because the belt can discharge through many contact points along its running length. However, the splice material should still match the belt’s key anti-static and flame-safety properties for combustible-dust, underground, single-conductive-surface, or high-risk applications. Large repairs, multiple splices, or clearly insulating compounds can no longer be treated as negligible.

Does an Anti-Static Conveyor Belt Require Special Storage?

The belt does not require a special warehouse solely because it is anti-static, but normal rubber-conveyor-belt storage controls still matter. Keep it away from direct sunlight, heat sources, ozone-producing equipment, oil, solvents, and excessive moisture. Avoid long-term compression, sharp bending, and contamination of the cover surfaces. Proper storage protects the rubber compound and prevents surface conditions that could interfere with later resistance testing or reduce the belt’s mechanical performance.

Is a Lower Electrical Resistance Always Better?

No. The required resistance should come from the project specification, operating risk, and selected test method. A value lower than the required limit does not automatically create a higher international safety grade. Excessive conductive filler can also affect rubber processing, mechanical properties, adhesion, or other cover performance. We therefore review whether the requested value is technically appropriate and can be maintained consistently in finished-belt production before confirming the conductive compound.

What Can Cause Belt Resistance to Increase During Service?

Resistance may increase because of severe cover wear, surface contamination, oil or chemical attack, heat ageing, unsuitable repair materials, or poor contact with the grounded conveyor structure. These factors do not affect every installation equally. When abnormal static accumulation appears, you should check the conveyed material, operating temperature, cleaning method, cover condition, splice and repair areas, roller contact, frame continuity, and grounding instead of assuming that the original belt compound alone has failed.

Can an Existing Anti-Static Belt Be Reproduced From Its Marking?

Not reliably. Belt markings usually show only part of the construction and may not include the original resistance limit, test method, conductive surface arrangement, or combined flame, oil, or heat requirements. We review the marking together with the original specification, application, conveyed material, and safety conditions. When the information is incomplete, an old belt sample or further technical confirmation may be needed to avoid copying only the dimensions while missing the required anti-static performance.

Request an Anti Static Conveyor Belt Quotation

Send us your conveyed material, required electrical resistance, and existing belt specification. We will review your application and confirm a suitable anti-static rubber conveyor belt before quotation.

Anti Static Conveyor Belt Manufacturer

What Is an Anti Static Conveyor Belt?

Anti-Static Performance of Our Rubber Conveyor Belts