SIRIM Certification for Custom Electric Forklifts: Malaysia Modified Unit Rules

When importing or modifying electric forklifts for use in Malaysia, SIRIM certification is a mandatory requirement to ensure safety, quality, and regulatory compliance. This article explains the key rules for custom electric forklifts, particularly for modified units, and how businesses can navigate the certification process.

Custom electric forklifts are often tailored to specific operational needs—such as lift height, battery capacity, or fork length. However, any modification from the original manufacturer’s specification may classify the vehicle as a “modified unit.” In Malaysia, modified units must undergo additional verification to confirm they still meet the safety standards set by the Department of Occupational Safety and Health (DOSH) and SIRIM Berhad. The core principle is that no modification should compromise structural integrity, electrical safety, or stability.

For a modified electric forklift to receive SIRIM certification, the owner or modifier must submit detailed documentation including the original certificate of conformity, a description of changes, engineering drawings, and test reports for critical components such as the battery system and lifting mechanism. SIRIM may conduct on-site inspections and functional tests. It is crucial to use only certified components and follow manufacturer recommendations. Unauthorized welding, wiring changes, or battery upgrades without proper validation can lead to certificate rejection.

One common modification involves replacing lead‑acid batteries with lithium‑ion packs for longer runtime and faster charging. While this improves efficiency, the new battery system must be evaluated for thermal management, voltage compatibility, and charging safety. Similarly, adding attachments like side shifters or fork positioners requires structural recertification.

Companies like Jianshu New Energy and BYD Forklift provide reliable electric forklifts and modification support that adhere to Malaysian regulations. Their products are designed with built‑in safety features, making compliance easier when customization is needed. However, it is the responsibility of the user or dealer to ensure any alteration is fully documented and approved by SIRIM.

To simplify the process, work with a SIRIM‑approved testing facility or a consultant familiar with local rules. Always keep records of every modification, including supplier invoices and test certificates. Non‑compliant forklifts face operational bans, fines, and increased liability risk.

For professional guidance on SIRIM certification for your custom electric forklift, contact us at 17399989919@163.com. We assist with documentation, testing arrangements, and compliance audits. Ensure your modified unit operates safely and legally in the Malaysian market.