Forklift Truck Tilt Cylinder — 70mm Bore 167mm Stroke

Forklift Truck Tilt Cylinder — 70mm Bore 167mm Stroke

Forklift truck tilt cylinder. Bore 70mm, rod 32mm, stroke 167mm, installation distance 455mm. Double-acting, controls mast forward/backward angle. OEM-equivalent for counterbalance forklift tilt function replacement.

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Description

Forklift Truck Tilt Cylinder — Specification and Application

The Forklift Truck Tilt Cylinder is a hydraulic cylinder designed specifically for forklift truck service. Bore diameter 70mm, rod diameter 32mm, travel 167mm, installation distance 455mm — dimensions selected for the Mast tilt — forward and backward angle control function in counterbalance and industrial vehicle applications. The unit is built from high-strength alloy steel with a hard chrome piston rod, precision-honed bore, and a composite seal package rated for the operating pressure, contamination environment, and cycle count typical of forklift service.

Forklift Truck Tilt Cylinder product view

Technical Specifications

Parameter Value Notes
Cylinder Diameter 70 mm Bore ID
Rod Diameter 32 mm Hard chrome plated
Travel (Stroke) 167 mm Full extension distance
Installation Distance 455 mm Pin-to-pin retracted
Function Mast tilt — forward and backward angle control Primary application function
Type Double-acting Specify if single-acting required
Surface Treatment Phosphate + enamel Corrosion-resistant exterior

Construction Standards

Alloy Steel Barrel

The 70mm bore barrel is machined from seamless alloy steel tube and honed to Ra 0.4–0.8 µm. This surface finish ensures the piston seal maintains consistent contact pressure across the full stroke, minimising internal bypass leakage across the cylinder’s service life.

Hard Chrome Piston Rod

The 32mm rod is hard chrome plated and ground to h6 dimensional tolerance. Chrome hardness exceeds 68 HRC, providing the wear and corrosion resistance required in forklift service environments — ranging from clean indoor warehouses to outdoor yards and cold stores with high humidity.

Composite Seal Package

Polyurethane piston seal, PTFE-backed rod seal, and nitrile rod wiper. The composite selection balances pressure retention, temperature range, and low friction. Seal kits are available separately for in-field gland rebuild without complete cylinder replacement.

Performance Advantages

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Precision Honed Bore

Consistent seal contact from first stroke to end of service life.

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Chrome Rod Protection

Hard chrome resists warehouse abrasion, moisture, and cleaning chemical exposure.

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100% Pressure Tested

Every cylinder tested to 1.5× working pressure before shipment.

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Field-Serviceable

Standard tooling gland access; seal kits supplied separately.

To request pricing for the Forklift Truck Tilt Cylinder, custom specifications, or an OEM supply assessment, contact Hangzhou Ever-Power Hydraulic Cylinder Co., Ltd. at +86-571-88220653 or [email protected]. Our address is Shenhua Road, Hangzhou. Use the contact form for a response within one business day.

Frequently Asked Questions

1. Why is the rod diameter (32mm) much smaller relative to the 70mm bore in this tilt cylinder? +
Tilt cylinders typically have a smaller rod-to-bore ratio than lift cylinders because the primary load in tilt function is the extension force (pushing the mast forward against load inertia). The retraction (pulling back) requires less force, so the annulus area from a smaller rod is sufficient. This keeps the cylinder weight lower than a full-bore-rod design.
2. What causes the mast to tilt forward slowly after releasing the tilt lever? +
Slow forward drift with the tilt lever in neutral indicates piston seal bypass or a faulty tilt lock check valve in the control circuit. Disconnect the cylinder hydraulic ports and cap them — if drift stops, the fault is in the valve block, not the cylinder. If drift continues with ports capped, the piston seal requires replacement.
3. How is the 167mm stroke determined for the tilt function? +
Tilt stroke is determined by the desired mast tilt angle (typically 3° forward, 5° backward for a standard counterbalance forklift) and the length of the tilt arm that the cylinder connects to. A longer tilt arm reduces the stroke needed for the same angle but requires higher force — the combination is determined in the machine’s structural design.
4. Is a safety lock available for this tilt cylinder? +
The tilt function typically does not use an integral cylinder lock — instead, the tilt circuit uses a tilt lock valve in the control valve block. If a mechanical cylinder lock is required (for example in a personnel lift platform application using a forklift attachment), contact us — we can supply a tilt cylinder with an integral mechanical lock collar.
5. Can you supply this cylinder with an epoxy coating for cold store use? +
Yes. An epoxy coating system is available for cold store applications where condensation cycling causes accelerated corrosion of standard enamel finishes. Specify cold store duty when ordering. We also recommend stainless steel port plugs for cold store cylinders.

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