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 » Telescopic Boom Truck Mounted Crane » (SQS250A-4) 10 Ton Telescopic Boom Truck Mounted Crane

(SQS250A-4) 10 Ton Telescopic Boom Truck Mounted Crane

Model: SQS250A-4

The SQS250A-4 is a robust heavy-duty telescopic boom truck crane engineered for demanding construction, industrial, and logistics projects. With a maximum lifting weight of 10,000 kg (10 t) and a maximum lifting moment of 25 t·m, it combines high efficiency with durable performance. Designed for full 360° slewing, a hydraulic crane weight of 3,900 kg, and installation space of 1,250 mm, it integrates seamlessly with medium-to-heavy truck platforms. Its 30 kW hydraulic system delivers 63 L/min at 28 MPa, ensuring smooth, energy-efficient lifting. Ideal for industrial assembly, port handling, and large-scale construction projects.

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Product Description

Product Description Safety Related Products

Product Description

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Product Advantage

The SQS250A-4 excels in high-capacity lifting, operational efficiency, and multi-industry versatility, making it a preferred choice for professional operators.

High Load Capacity: Lifts up to 10 t with a 25 t·m moment for heavy materials and machinery.

Precision Hydraulics: 63 L/min flow and 28 MPa pressure for smooth and controlled lifting.

360° Slewing: Provides full rotation flexibility for tight or complex industrial sites.

Durable Construction: Reinforced steel frame ensures safety, reliability, and long service life.

Wide Application: Suitable for construction, logistics, industrial machinery installation, and municipal infrastructure.

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Technical Parameters

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Crane main technical parameters

Maximum Lifting weight	10000Kg	Oil tank capacity	150L
Maximum lifting moment	25t.m	Slewing angle	360°
Recommended power	30 KW	Hydrauic Crane weight	3900kg
Recommended hydroulic flow	63 L/min	Installation space	1250mm
Rated hydraulic pressure	28MPa

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Product Uses

Construction Sites: Lifting steel structures, concrete panels, and prefabricated materials.

Industrial Maintenance: Moving machinery and equipment within factories or plants.

Port Operations: Handling containers and heavy cargo efficiently.

Urban Projects: Installing streetlights, traffic signals, and other urban infrastructure.

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FAQ

1. What truck chassis can support this crane?

A: Medium-to-heavy trucks with 1,250 mm mounting space and sufficient payload capacity.

2. Is this model suitable for continuous industrial operations?

A: Yes, engineered for long operational hours with minimal maintenance.

3. What is the warranty for SQS250A-4?

A: Standard 12-month warranty, covering structural and hydraulic components.

4. Can this crane lift at full extension safely?

A: Yes, up to the rated lifting weight (10 t) and moment (25 t·m).

5. How does Tengchang support international customers?

A: We provide global shipping, spare parts, and technical service support.

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.