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 » Truck Mounted Crane » (SQZ200A.4) 10 Ton Truck Mounted Knuckle Boom Crane

(SQZ200A.4) 10 Ton Truck Mounted Knuckle Boom Crane

Model: SQZ200A.4

The SQZ200A.4 Folding Boom Truck Mounted Crane is a powerful and versatile mobile lifting solution designed for medium to heavy-duty operations. With a maximum lifting capacity of 10 tons and a lifting torque of 20 t.m, it delivers strong and stable performance for demanding construction and industrial tasks. Featuring a 360° slewing angle, compact 1,200mm installation space, and a high-efficiency hydraulic system, the SQZ200A.4 is suitable for urban construction, infrastructure projects, logistics handling, and equipment installation. Its robust structure and optimized hydraulic design ensure reliable operation, high productivity, and long service life in diverse working environments.

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Product Description

Product Description Safety Related Products

Product Description

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Product Advantage

1. Strong Lifting Performance for Heavy Loads
With a maximum lifting weight of 10,000kg and 20 t.m lifting torque, the SQZ200A.4 is capable of handling steel structures, heavy machinery, prefabricated components, and construction materials. It is an ideal solution for customers seeking a balance between power and flexibility in a truck-mounted crane.

2. High-Efficiency Hydraulic System
The crane operates with a rated hydraulic pressure of 28MPa and a recommended hydraulic flow of 60 L/min, ensuring fast response, smooth lifting, and precise control. The 150L oil tank supports long working hours and continuous operation on demanding job sites.

3. Compact Installation with Excellent Mobility
Despite its high lifting capacity, the SQZ200A.4 requires only 1,200mm of installation space and has a self-weight of 3,900kg. This compact design allows easy installation on medium to heavy-duty trucks while maintaining excellent road mobility and site adaptability.

4. Stable 360° Slewing and Flexible Operation
The full 360° slewing angle enables efficient load positioning without frequent vehicle repositioning. Combined with the folding boom structure, the crane performs exceptionally well in confined spaces such as urban streets, factory yards, and infrastructure sites.

5. Reliable Structure and Safety-Oriented Design
Manufactured with high-strength steel and precision welding, the SQZ200A.4 offers long-term durability. Integrated safety systems, including overload protection and hydraulic stabilization, ensure safe and reliable lifting under various working conditions.

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Technical Parameters

Crane main technical parameters

Maximum Lifting weight	1000Kg	Oil tank capacity	150L
Max lifting movement.	20 t.m	Slewing angle	360°
Recommended power	30KW	Hydrauic Crane weight	3900kg
Recommended hydraulic flow	60 L/min	Installation space	1200mm
Rated hydraulic pressure	28MPa

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Product Uses

1. Construction and Infrastructure Projects
Widely used for lifting steel beams, precast concrete elements, formwork, and construction machinery in residential, commercial, and infrastructure projects such as bridges and highways.

2. Industrial Equipment Installation
Ideal for factories and industrial plants to move heavy machines, production lines, generators, and large components, improving installation efficiency and workplace safety.

3. Logistics and Material Handling
Suitable for loading and unloading heavy cargo, containers, and pallets at logistics centers, warehouses, and freight yards, reducing manual handling and operational costs.

4. Municipal and Public Utility Works
Supports streetlight installation, pipeline maintenance, road facility handling, and other municipal projects that require reliable and precise lifting equipment.

5. Emergency Response and Recovery Operations
Can be rapidly deployed for lifting debris, damaged equipment, or rescue supplies during emergencies, disasters, and recovery operations.

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FAQ

1. What type of truck is suitable for mounting the SQZ200A.4?

A: The SQZ200A.4 is suitable for medium to heavy-duty trucks with adequate chassis strength and hydraulic capacity, thanks to its 3,900kg crane weight and compact installation space of 1,200mm.

2. Is this crane suitable for continuous heavy-duty operation?

A: Yes. With a 30KW recommended power, 60 L/min hydraulic flow, and a 150L oil tank, the SQZ200A.4 is designed for long working hours and demanding lifting tasks.

3. What quality standards does Tengchang follow in manufacturing?

A: Tengchang Construction Machinery strictly follows ISO9001 quality management standards and holds the national truck-mounted crane manufacturing license, ensuring consistent quality and safety.

4. Can Tengchang provide customization for different applications?

A: Yes. Tengchang offers customization options such as control systems, boom configurations, and application-specific accessories to meet diverse customer requirements.

5. What after-sales support does Tengchang provide?

A: Tengchang provides comprehensive after-sales services, including installation guidance, technical support, maintenance consultation, and spare parts supply for global customers.

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.