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 » Knuckle Boom Truck Mounted Crane » (SQZ20A.2A.3) 1.5 Ton Knuckle Boom Truck Mounted Crane

(SQZ20A.2A.3) 1.5 Ton Knuckle Boom Truck Mounted Crane

Model: SQZ20A.2A.3

The SQZ20A.2 Knuckle Boom Truck Mounted Crane is a mid-duty hydraulic loader crane designed for efficient lifting, loading, and material handling on commercial trucks. With a maximum lifting capacity of 5,000 kg and a lifting moment of 10 t.m, this folding boom truck crane delivers an ideal balance between power, stability, and compact installation space. Featuring a 400° slewing angle, high-strength steel structure, and optimized hydraulic system, it is widely used in logistics transport, construction sites, municipal engineering, and equipment installation, offering reliable performance and high operational efficiency in demanding working environments.

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1.5 ton knuckle boom crane 1.5 T truck mounted crane 1.5 ton truck crane 1.5 T folding boom crane 1.5 T hydraulic knuckle boom crane 1.5T crane for sale compact 1.5 ton crane truck truck mounted knuckle boom 1.5T 1.5 T articulated boom truck crane

Product Description

Product Description Safety Related Products

Product Description

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Product Advantage

1. Strong Lifting Performance with Compact Design
The SQZ20A.2 offers a maximum lifting weight of 5 tons while maintaining a compact installation space of only 1070 mm. This makes it suitable for medium-duty trucks where payload optimization and space utilization are critical, ensuring higher transport efficiency without sacrificing lifting capability.

2. Stable Hydraulic System for Continuous Operation
Equipped with a rated hydraulic pressure of 28 MPa and a recommended flow of 40 L/min, this knuckle boom crane ensures smooth, stable lifting and slewing movements. The optimized hydraulic circuit reduces pressure loss and improves response speed, enhancing safety and productivity during frequent loading cycles.

3. Wide Slewing Angle for Flexible Working Radius
With a 400° slewing angle, the crane allows flexible operation on both sides of the truck, significantly reducing repositioning time. This advantage is especially valuable in confined job sites such as urban construction areas and roadside operations.

4. Durable Structure and Long Service Life
Manufactured with precision welding and high-strength steel plates, the crane body provides excellent fatigue resistance and structural rigidity. Combined with advanced surface treatment and corrosion protection, it ensures durability under harsh outdoor working conditions.

5. Easy Installation and Low Maintenance Cost
The modular design simplifies installation and daily maintenance. Standardized components and accessible hydraulic connections help reduce downtime, making this folding boom truck crane a cost-effective solution for fleet operators.

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Technical Parameters

Crane main technical parameters

Max lifting movement.	19.6KN.m	Recommended hydraulic flow	15 L/min
Maximun Lifting weight	1500Kg	Maximum working pressure	22MPa
Maximum working range	3.2m	Slewing speed	≤3r/Min
Maximum lifting height	>4.4m	Recommended power	7.5KW
Boom Angle	70°	Oil tank capacity	25L
Slewing angle	330°	Installation space	550mm
Hydrauic Crane weight	500kg	Operation temperature	-25°C-+50°C

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Product Uses

Logistics and Cargo Handling
Ideal for loading and unloading heavy pallets, construction materials, and machinery components during urban and intercity transportation.

Construction and Infrastructure Projects
Widely used for lifting steel structures, precast elements, and tools on building sites, bridges, and municipal projects.

Equipment Installation and Maintenance
Suitable for installing generators, HVAC units, and industrial equipment where precise positioning is required.

Utility and Municipal Services
Commonly applied in streetlight installation, roadside maintenance, and public facility construction.

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FAQ

1. What type of truck is suitable for SQZ20A.2 installation?

A: SQZ20A.2 is suitable for medium-duty trucks with sufficient chassis strength and hydraulic power output, commonly 6–10 ton class trucks.

2. Can the crane be customized for different control options?

A: Yes, the crane can be equipped with manual valve control or optional remote control systems according to customer requirements.

3. Is this crane suitable for continuous daily operation?

A: Yes, the stable hydraulic system and robust structure make it suitable for high-frequency, long-duration operations.

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.