Home > PB17D-3R Mobile Concrete Placing Boom — 17 m on a Wheeled Frame

PB17D-3R Mobile Concrete Placing Boom — 17 m on a Wheeled Frame

The PB17D-3R is a wheeled mobile concrete placing boom designed for horizontal concrete distribution across expansive slabs and linear structures. It features a 17 m placement radius via a 3-section R-fold articulating boom. Operating on a 380V/50Hz electrical supply with a 5.5 kW motor, the system utilizes a 25 MPa hydraulic circuit. Mounted on a wheeled frame with a total operational weight of 7,950 kg, the unit can be towed or dragged between placement zones, eliminating the reliance on site cranes for relocation. The boom incorporates a continuous 360° slewing range driven by a self-locking turbo worm gear mechanism. Integrated with a stationary or truck-mounted line pump via a delivery pipeline, it functions as the terminal distribution unit for ground-level and suspended slab pours.

1. Wheeled mobility — Mounted on a rolling frame, the unit is towed or dragged to subsequent positions within the site, bypassing crane availability constraints.

2. 3-Section R-Fold articulation — The fully hydraulic boom unfolds to a 17 m radius and stows compactly for transport and towing.

3. Continuous 360° slewing — Provides full-circle rotational coverage from a single setup position to distribute concrete evenly across the operational bay.

4. Turbo worm gear drive — Utilizes a self-locking worm-gear mechanism to maintain angular stability and prevent boom drift under load.

5. Dual remote control systems — Supported by wireless radio and cable remote controls, enabling operators to maintain direct visual alignment with the pour.

6. Low 2.9 m overall height — The compact rolling profile navigates under site obstructions and low clearances during relocation.

7. Standardized components — The hydraulic and electrical systems integrate components from established suppliers to ensure operational stability.

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Technial Parameters

Item	Unit	PB17D-3R
Performance
Max. Radius of Placing Boom	m	17
Overall Height	m	2.9
Slewing Range	/	360°
Mode of Slewing	/	Turbo Worm Drive
Application Scenario	/	Mobile (Wheel Type)
Circumstance Temperature	℃	-20 ~ 55
Power Supply (customisable)	/	380V / 50Hz
Boom (3-Section R-Fold)
1st Section — Length	m	7.1
1st Section — Articulation	°	0 ~ 86
2nd Section — Length	m	5.5
2nd Section — Articulation	°	0 ~ 180
3rd Section — Length	m	4.5
3rd Section — Articulation	°	0 ~ 180
Delivery Line
Delivery Pipeline Diameter	mm	Φ125 × 4.5
Delivery Hose Diameter	in × mm	5" × 3000
Power & Hydraulics
Motor Power	kW	5.5
Hydraulic Pressure	MPa	25
Hydraulic Oil (5℃–55℃)	/	HM46 anti-wear
Hydraulic Oil (-20℃–5℃)	/	HM32 anti-wear
Weight
Total Weight	kg	7950
Max. Lifting Unit	kg	5850

Dimensions & Working Range

The working-range diagram shows the 17 m radius swept through 360° from each stopping point, plus the vertical fold of the three arms. At 2.9 m overall height the wheeled unit clears low obstructions as it moves. Plan the boom's path so successive positions overlap, letting it roll along the work and cover a large area in stages without a crane lift.

Applications

The PB17D-3R is engineered for applications requiring extensive horizontal concrete distribution where the placement equipment must be frequently relocated across the site.

Floor slabs and decks

Facilitates concrete placement across suspended slabs and ground floors, utilizing the wheeled frame to transition between bays sequentially without crane assistance.

Linear and advancing structures

Supports linear construction projects, such as channels and long foundations, by advancing the distribution point along the operational axis.

Sites with limited crane availability

Operates independently of tower or mobile cranes, ensuring uninterrupted concrete distribution when lifting equipment is allocated to other tasks.

Repeated, frequent repositioning

Integrates with concrete pumps to deliver material across varied site topographies requiring frequent equipment relocation.

FAQs

How is the PB17D-3R different from the PB17B-3R-II spider boom?

Both models provide a 17 m placement radius but utilize distinct mobility mechanisms. The PB17D-3R is mounted on a wheeled frame, allowing it to be towed or dragged between positions without crane assistance. The PB17B-3R-II features stationary outrigger legs and requires crane relocation. The PB17D-3R is specified for sites where ground mobility is prioritized over fixed-stance stability.

Is it truck-mounted or self-driving?

It is not a self-driving vehicle. The PB17D-3R is a placing boom mounted on a wheeled frame designed to be towed or dragged within the construction site. It lacks a road-legal chassis and an onboard propulsion engine.

How is it moved around the site?

The unit utilizes its integrated wheels. The frame body is towed or dragged to the designated placement zone, enabling the boom to advance with the construction sequence independently of crane lifts.

Is the placing boom a concrete pump?

No. The placing boom functions strictly as a concrete distributor. It requires a separate stationary or line concrete pump to propel the material through a delivery pipeline to the boom's inlet.

Is it electric, and how heavy is it?

The system is electrically driven, operating on a 380V/50Hz supply with a 5.5 kW motor. It does not feature an onboard diesel engine. The total operational weight on the wheeled frame is 7,950 kg. If crane lifting is required, the maximum single lifting unit weighs 5,850 kg.

What is supplied, and how is it delivered?

The standard configuration includes the boom on the wheeled frame, the hydraulic and control systems, and the remote controls. The delivery pipeline, hoses, and spare parts are specified according to project requirements.

Mobile placing boom configurations

Concrete placing booms deploy different mobility mechanisms based on site logistics. The PB17D-3R utilizes a wheeled frame for ground-level towing, optimizing relocation speed on expansive slabs without crane dependence. In contrast, spider booms like the PB17B-3R-II rely on site cranes for positioning. The wheeled configuration is prioritized for continuous linear pours and environments where crane availability is constrained.

System integration in concrete placement

The wheeled placing boom operates as the terminal distribution unit in the concrete delivery chain. Concrete is pumped from ground level via a stationary or truck-mounted line pump through a delivery pipeline. The PB17D-3R receives the material and maneuvers its articulating arms to deposit concrete precisely across the work area. Upon completion of a section, the unit is towed to the next zone, and the pipeline is extended accordingly.

Deployment criteria

Wheeled mobile placing booms are specified for projects requiring frequent lateral movement, such as large slabs poured in sequential bays, long foundation trenches, and congested sites with strict crane schedules. Where crane access is readily available and the lightest lift unit is required, spider booms are deployed. The PB17D-3R provides the necessary ground mobility to maintain continuous concrete distribution across horizontal planes.