Boom Positioning & Load Alignmen

Rotate the crane to align the boom over the load. Adjust boom height and telescopic extension to position the hook correctly. Safety Tip: Follow the load chart and ensure lifting weight is within allowed limits for current boom radius and angle.

Crane Extension Preparation

Sit at operator seat and slowly operate boom angle handles to extend the main boom and telescopic sections. Move one handle at a time. Safety Tip: Never operate multiple boom handles simultaneously. Keep boom path clear of personnel.

Unlock outriggers and extend main and auxiliary outriggers fully. Place support pads under each outrigger on soft ground. Safety Tip: Ensure the truck is level. Incomplete extension may lead to tipping hazards.

Engaging Power Take-Off (PTO)

Ensure truck gear is in neutral and PTO switch is off. Start engine and wait for safe air pressure levels. Engage PTO slowly to drive the hydraulic crane system. Safety Tip: Confirm all control levers are neutral before operation. Improper PTO engagement can damage hydraulic components.

Pre-Operation Site Check

Park the truck on firm, level ground. Engage the parking brake. Inspect the surrounding area for obstacles, overhead lines, or unstable surfaces. Confirm the load is within crane rated capacity and lifting height limits. Safety Tip: Never operate on soft or sloped surfaces. Maintain at least 10 meters distance from high-voltage lines.

You are here: Home » Product » Timber Crane » 0.7 Ton Forestry Crane (ZM78.3)

0.7 Ton Forestry Crane (ZM78.3)

The ZM78.3 is a medium-duty hydraulic timber crane, designed for small-scale forestry, sawmill operations, and light construction material handling. With a maximum lifting weight of 700 kg, a lifting moment of 6.5 t.m, and 380° slewing, it ensures precise load control and operational flexibility. The recommended hydraulic flow is 45 L/min at 20 MPa with a 60 L oil tank, offering stable and efficient performance. Its overall weight (1,750 kg) and compact installation footprint (800 mm) make it suitable for truck-mounted or stationary applications.

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Product Description

Product Description Safety Related Products

Product Description

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Product Advantage

ZM78.3 offers flexible lifting, precise control, and reliable hydraulic performance, making it a versatile choice for timber handling.

Reliable Load Lifting: Handles up to 700 kg for timber and bulk material.

360°+ Flexible Slewing: 380° rotation for accurate placement and efficient operation.

Stable Hydraulic Operation: 45 L/min flow at 20 MPa ensures smooth lifting.

Rugged Build: Reinforced steel structure ensures durability in outdoor forestry or industrial use.

Compact Footprint: Lightweight and small installation space facilitates integration with trucks or stationary systems.

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Technical Parameters

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Crane main technical parameters

Maximum Lifting weight (graps included)	700 Kg	Oil tank capacity	60L
Max lifting movement	6.5 t.m	Slewing angle	380°
Recommended power	18KW	Hydrauic Crane weight	1750kg
Recommended hydroulic flow	45 L/min	Installation space	800mm
Rated hydraulic pressure	20MPa

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Product Uses

Forestry & Logging: Moving logs from cutting areas to transport vehicles.

Timber Yards & Sawmills: Efficient handling of medium-sized timber.

Construction & Light Industrial Sites: Lifting beams, planks, and bulk materials.

Recycling Operations: Handling timber or scrap wood safely and efficiently.

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FAQ

1. Can ZM78.3 be mounted on standard truck beds?

A: Yes, its compact design is compatible with most small to medium truck beds.

2. What is the maximum rotation under load?

A: 380° continuous slewing is supported at full 700 kg capacity.

3. How does Tengchang guarantee product durability?

A: Built with reinforced steel, tested under ISO9001 and GJB9001C-2017 standards, and designed for outdoor use.

4. Are spare parts and service available globally?

A: Yes, Tengchang provides worldwide support and parts supply.

5. Can the hydraulic flow be adjusted for different operations?

A: Yes, flow can be fine-tuned to optimize speed and control depending on the load type.

Truck-Mounted Crane Safety & Operation Guide

Ensuring operator and crew Safety with proper handling.

Boom Positioning & Load Alignmen

Rotate the crane to align the boom over the load.

Adjust boom height and telescopic extension to position the hook correctly.

Safety Tip: Follow the load chart and ensure lifting weight is within allowed limits for current boom radius and angle.
Crane Extension Preparation

Sit at operator seat and slowly operate boom angle handles to extend the main boom and telescopic sections.

Move one handle at a time.

Safety Tip: Never operate multiple boom handles simultaneously. Keep boom path clear of personnel.
Outrigger Setup

Unlock outriggers and extend main and auxiliary outriggers fully.

Place support pads under each outrigger on soft ground.

Safety Tip: Ensure the truck is level. Incomplete extension may lead to tipping hazards.
Engaging Power Take-Off (PTO)

Ensure truck gear is in neutral and PTO switch is off.

Start engine and wait for safe air pressure levels.

Engage PTO slowly to drive the hydraulic crane system.

Safety Tip: Confirm all control levers are neutral before operation. Improper PTO engagement can damage hydraulic components.
Pre-Operation Site Check

Park the truck on firm, level ground. Engage the parking brake.

Inspect the surrounding area for obstacles, overhead lines, or unstable surfaces.

Confirm the load is within crane rated capacity and lifting height limits.

Safety Tip: Never operate on soft or sloped surfaces. Maintain at least 10 meters distance from high-voltage lines.

Post-Operation Maintenance

Lubricate pivot points, boom slides, and hydraulic cylinder pins

Check hydraulic oil levels, inspect hoses, and tighten bolts

Safety Tip: Only trained personnel should perform hydraulic maintenance. Replace worn parts immediately.
Crane Retraction & Stowage

Retract telescopic sections and fold boom sequentially.

Rotate crane to stowed position and fully retract outriggers

Safety Tip: Follow reverse order of extension to protect hydraulic cylinders and boom sections.
Lowering & Load Placement

Lower the load carefully to the designated position.

Detach slings and cables only when load is stable and personnel are clear.

Safety Tip: Never leave a suspended load unattended. Avoid sudden lowering.
Rotating with Load

Rotate the crane slowly to move the load

Monitor outrigger stability and crane tipping indicators.

Safety Tip: Do not extend the working radius while rotating a loaded boom. Keep movements smooth.
Lifting Operation

Lift the load slowly and steadily. Avoid sudden movements or swinging.

Monitor vehicle stability and outrigger pressure during the lift.

Safety Tip: Never exceed rated capacity. Avoid lifting loads over personnel.