Home > PB51AT-4R-E Lattice Tower Concrete Placing Boom — 51 m Radius

PB51AT-4R-E Lattice Tower Concrete Placing Boom — 51 m Radius

PB51AT-4R-E Lattice Tower Concrete Placing Boom — 51 m Radius

PB51AT-4R-E Lattice Tower Concrete Placing Boom — 51 m Radius

The PB51AT-4R-E is a free-standing lattice tower concrete placing boom providing a 51 m operating radius and a 46 m free-standing height. It integrates a heavy-duty 2 × 2 m mast structure, comprising twelve L68A1 standard sections on a 2 × 2 × 7.5 m base section, designed to support the extensive horizontal reach and vertical elevation. The system utilizes a telescopic cage for self-erection and features electro-hydraulic proportional control for stable operation of its 21.5 m primary boom section. Powered by a 380V/50Hz supply with a 37.5 kW motor, the equipment is manufactured to CE standards.

1. 51 m Reach — Provides a 51 m operating radius from a single installation point.

2. 46 m Free-Standing Height — Achieves 46 m vertically without structural tie-ins.

3. 2×2 m Lattice Mast — Integrates twelve 2×2×3 m L68A1 sections on a 2×2×7.5 m base.

4. Telescopic Climbing Mechanism — Features a dedicated hydraulic pump and cylinder for mast self-erection.

5. Four-Section R-Fold Boom — Comprises a 21.5 m primary arm and three subsequent arms to reach the 51 m radius.

6. Electro-Hydraulic Proportional Control — Regulates hydraulic flow to ensure smooth articulation of the boom assembly.

7. 360° Gear Slewing — Mechanical gear drive enables continuous full-circle rotation.

8. Remote Operation — Includes a radio remote control and standard 380V/50Hz electrical architecture.

Get a Quick Quote

Technial Parameters

Item	Unit	PB51AT-4R-E
Performance
Max. Radius of Placing Boom	m	51
Free-Standing Height (to boom root joint)	m	46
Slewing Range	/	360°
Mode of Slewing	/	Gear Slewing
Application Scenario	/	Lattice Type
Circumstance Temperature	℃	-20 ~ 55
Power Supply (customisable)	/	380V / 50Hz
Boom (4-Section R-Fold)
1st Section — Length	m	21.5
1st Section — Articulation	°	0 ~ 86
2nd Section — Length	m	9.8
2nd Section — Articulation	°	0 ~ 180
3rd Section — Length	m	9.8
3rd Section — Articulation	°	0 ~ 180
4th Section — Length	m	9.9
4th Section — Articulation	°	0 ~ 180
Delivery Line
Delivery Pipeline Diameter	mm	Φ125 × 4.5
Delivery Hose Diameter	in × mm	5" × 3000
Tower Structure
Telescopic Cage	/	Incl. pump & cylinder
Mast Section (L68A1)	m	(2 × 2 × 3) × 12
Base Section	m	(2 × 2 × 7.5) × 1
Power & Hydraulics
Motor Power	kW	37.5
Hydraulic Pressure	MPa	30
Control	/	Electro-hydraulic proportional
Hydraulic Oil (5℃–55℃)	/	HM46 anti-wear
Hydraulic Oil (-20℃–5℃)	/	HM32 anti-wear
Weight
Total Weight	kg	66000
Max. Lifting Unit	kg	14800

Dimensions & Working Range

The 51 m radius operating through 360° creates a 102 m diameter coverage zone from a single installation position. The working-range diagram details this spatial envelope relative to the 46 m mast height. Installation planning requires specific calculation of foundation loads and mast tie-in configurations as specified in the technical documentation.

Applications

The PB51AT-4R-E is designed for large-scale concrete operations demanding maximum reach and vertical clearance from a fixed, free-standing position.

Tall Structures

Tall Structures: The 46 m free-standing height supports continuous concrete distribution across elevated floor plates.

Large Area Foundations

Large Area Foundations: The 51 m radius covers extensive raft foundations and podium decks, reducing equipment relocation requirements.

Civil Engineering

Civil Engineering: Suitable for dams, bridge piers, and infrastructure projects requiring an independent concrete placing system.

High-Volume Pours

High-Volume Pours: Designed for operations demanding long horizontal reach and high vertical clearance.

FAQs

What are the primary differences between the PB51AT-4R-E and PB38BT-4R-E models?

The PB51AT-4R-E provides a 51 m radius and 46 m free-standing height on a 2×2 m mast, engineered for maximum scale operations. The PB38BT-4R-E offers a 38 m radius and 40 m free-standing height on a 1.6 m mast. The PB51AT-4R-E requires a crane with a minimum 14,800 kg lifting capacity for the heaviest unit.

What is the maximum coverage area from a single installation?

With a 360° slewing capability and a 51 m radius, the boom covers a circular area approximately 102 m in diameter from a single fixed location.

How is the mast height increased during construction?

The system utilizes a self-erecting mechanism. A telescopic cage equipped with a dedicated hydraulic pump and cylinder elevates the upper assembly, allowing for the insertion of additional 2×2 m L68A1 mast sections to increase height.

What is the function of the electro-hydraulic proportional control?

The electro-hydraulic proportional control system regulates hydraulic flow to ensure smooth, low-shock articulation of the boom sections, providing stability and precision at full extension.

Does the placing boom include a concrete pumping mechanism?

The placing boom functions exclusively as a concrete distribution system. A separate stationary or truck-mounted line pump is required to deliver concrete through a vertical riser pipe attached to the mast.

What are the weight specifications and erection requirements?

The total system weight is 66,000 kg. The maximum lifting unit weight is 14,800 kg. Installation requires a custom-engineered foundation to support the specific static and dynamic loads of the tower assembly.

What components are included in the standard package?

Standard supply includes the boom assembly, 2×2 m lattice mast sections, telescopic cage, lifting mechanism, hydraulic system, control unit, and radio remote. Delivery pipelines, end hoses, and foundation engineering are configured based on specific project parameters.

PB51AT-4R-E Lattice Tower Specifications

The PB51AT-4R-E provides a 51 m horizontal reach and a 46 m free-standing vertical height. Built on a 2×2 m mast, it is engineered for large-scale structural concrete placement. It functions alongside the PB38BT-4R-E to provide scalable options for varying structural dimensions.

Integration with Concrete Pumping Systems

The PB51AT-4R-E operates as a dedicated concrete distribution unit and requires integration with a stationary concrete pump or truck-mounted line pump. The auxiliary pump forces concrete vertically through a riser pipe. The four-section boom then articulates via electro-proportional control to place the concrete precisely across the target radius.

Application Parameters

This model is specified for projects requiring extensive coverage from a fixed position without relying on the building structure for direct support. Common applications include major tower foundations, large dams, and extensive civil engineering structures. Deployment requires formal structural calculation for the foundation and appropriately sized lifting equipment.