Forklift Mast Chain LH2034-101J-7P (LT-LH2034-101J-7P) — Heli / Hecha 5-7 Ton Forklift Original Standard 3M Mast Lifting Chain
This forklift mast chain part number LH2034-101J-7P (LT-LH2034-101J-7P) is a Kingstream OEM original standard mast lifting chain for Heli and Hecha 5-7 ton forklift trucks in manufacturing and industrial material handling. The mast chain — also called the leaf chain or lift chain — is the primary lifting medium in the forklift mast system. It connects the hydraulic lift cylinder to the inner mast sections, transmitting the cylinder extension force into upward carriage movement. 14.2kg with 59×27×10cm carton or wooden box packaging. 1-year warranty. CE, ISO9001, ROHS, UL certified. OEM, ODM, and customized service available. Supply capacity: 50,000 sets per month. Kingstream OEM for Heli 5-7T forklift fleet mast chain replacement.
MAST CHAIN OPERATION: Forklift mast chains are leaf chains designed specifically for lifting applications — unlike roller chains used in power transmission, leaf chains are rated for tensile load only (not for sprocket drive). The LH2034 designation indicates a specific chain pitch and plate configuration sized for the Heli 5-7 ton lift cylinder stroke and mast height. The chain is anchored at one end to the outer mast channel or carriage, passes over a chain pulley (sheave) at the top of the lift cylinder rod, and anchors at the other end to the inner mast channel. As the lift cylinder extends, the chain pulls the inner mast upward at twice the cylinder stroke speed — this is the standard 2:1 reeving ratio used in most forklift masts. For Heli 5-7T forklift fleet mast chain replacement, contact us. Kingstream OEM.
INSTALLATION AND SAFETY: Step 1 — Lower the mast fully and support the inner mast sections. Step 2 — Remove the chain anchor bolts at both the mast and carriage ends. Step 3 — Remove the old chain from the mast, noting the routing over the sheave pulleys. Step 4 — Route the new LH2034-101J-7P chain through the mast, over the sheave, and to both anchor points. Step 5 — Secure the chain anchors with proper torque on the anchor bolts. Step 6 — Check that both chains (left and right sides) are equal in length and tension — unequal chains cause the carriage to tilt and the mast to bind. Step 7 — Cycle the mast full up and down several times with no load. Step 8 — Verify smooth operation and check chain tension. Step 9 — Test with rated load at low height. CAUTION: Mast chains are critical safety components — never use a damaged, worn, or stretched chain. For Heli 5-7T forklift fleet mast chain safety inspection and replacement, contact us. Kingstream OEM.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | LH2034-101J-7P / LT-LH2034-101J-7P |
| Type | Leaf Chain / Mast Lifting Chain |
| Application | Heli / Hecha 5-7 Ton Forklift (3M Genuine) |
| Certification | CE / ISO9001 / ROHS / UL |
| Weight | 14.2 kg |
1-year warranty. Supply 50,000 sets/month. Kingstream OEM. Contact us.




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