Construction Engineering

After the main structure of a high-rise building is completed, the construction of the secondary structure often becomes a bottleneck. Tower cranes are occupied by the main structure, and structural columns and ring beams need to be poured, leaving workers with no choice but to wait. The interior space is cramped, making it difficult to move materials inside. Bagged cement, bricks, and other materials require extensive manual handling, accounting for over 30% of labor costs. During interior demolition, large machinery cannot enter, and manual sledgehammers are inefficient and noisy.
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Concrete PumpTricycle CraneCrawler MachineHand-Held Road RollerMini ExcavatorSpider CraneSkid Steer

Concrete Pump

In high-rise building secondary structure construction, tower cranes are often occupied by the main structure, leaving workers to wait while structural columns and ring beams are poured. The PIVOT secondary structure pump features an inclined design, 40% shorter than traditional horizontal pumps and 35% lower than vertical pumps, allowing it to fit inside construction elevators and be flexibly placed in stairwells and elevator lobbies. It directly pumps concrete to the work surface, completely freeing the tower crane. The reverse pumping function can clear blockages within 5 minutes, while traditional methods take an average of 45 minutes. With a continuous pumping capacity of 15m³/h, its efficiency far surpasses the intermittent conveying of tower cranes and hoppers.
Motor Power: 15kW
Theoretical Conveying Capacity: 15m³/h
Outlet Pressure: 4MPa
Maximum Aggregate Size: 20mm
Total Weight: 1200kg
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Comparison of Concrete Delivery Methods

Comparison Dimensions

Tower Crane + Hopper

PIVOT Secondary Structure Pump

Conveying methods

Intermittent operation

Continuous pumping

Tower crane occupancy

Total occupation

No space required

Conveying efficiency

8-10m³/shift

15m³/h

Adaptability to confined spaces

Requires hopper rotation space

Can be placed in stairwell

Tricycle Crane

Construction sites often have numerous small-scale lifting tasks—scaffolding needs to be hoisted to upper floors, rebar needs to be moved to the processing area, and precast components need to be positioned. Using a tower crane would take up time during the main structure construction; using a truck crane would be costly and inaccessible to the construction site. The PIVOT three-wheeled crane can drive itself to various work areas, offering flexibility, low cost, and simple operation. One vehicle can meet all the small-scale lifting needs of the entire construction site.
Lifting capacity: 3 tons
Lifting height: 8 meters
Motor power: 11kW
Travel speed: 30km/h
Total weight: 3.2 tons
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Comparison of three-wheeled cranes and manual hoisting

Comparison Dimensions

Manual scaffolding and hoisting

PIVOT Tricycle Crane

Lifting capacity

Relies on multi-person collaboration

Lifting capacity of 3 tons

Relocation method

Requires disassembly and assembly of shelves

Self-propelled, no trailer required

Safety

High risk

Mechanical operation, safe and controllable

Crawler Machine

At the construction site entrance, a truckload of bags of cement or bricks arrives. Traditionally, unloading, handling, and stacking require 3-5 people. The PIVOT loading and unloading machine allows the conveyor belt to extend directly into the truck bed, ensuring the materials never touch the ground from unloading to the stacking point, eliminating the need for manual handling. With an efficiency of 60 tons/hour, one machine replaces one forklift and three handling workers. Multiple degrees of freedom adjustment adapt to different unloading areas and stacking locations, making it an essential tool for material handling on large construction sites.
Rated production capacity: 60 tons/hour
Loading/unloading distance: 6-16 meters
Conveyor belt speed: 0.5-2.0 m/s
Overall machine dimensions: 8.8 × 2.1 × 2.8 meters
Overall machine weight: 6700 kg
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Material handling efficiency comparison

Comparison Dimensions

Manual handling

PIVOT Multifunctional Loading and Unloading Machine

Handling capacity

0.5-1 ton/hour per person

60 tons/hour

Labor requirements

3-5 people

1-2 people

Material damage

Damage during handling

No touching the ground, minimal damage

Hand-Held Road Roller

The backfill soil around buildings and foundation trenches needs to be compacted, but large road rollers cannot get close—they will hit the wall if too close, and get stuck if too close to the column. The PIVOT walk-behind road roller has a narrow body, allowing it to operate in these corner areas. With a vibration force of 25kN, it ensures that the compaction of the foundation edges meets the standards, preventing future settlement and cracking.
Power: 5.5kW
Weight: 700kg
Vibration Force: 25kN
Amplitude: 0.5mm
Climbing Capability: 30°
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Comparison of hand-held road rollers and manual compaction

Comparison Dimensions

Manual compaction

PIVOT Hand-Held Road Roller

Compaction depth

15-20cm

300mm（Product Parameters）

Vibration force

—

25kN（Product Parameters）

Mini Excavator

For indoor demolition and basement excavation, where large machinery cannot enter and manual sledgehammers are inefficient, noisy, and dusty, the PIVOT mini excavator, after removing the cab and counterweight, can be transported to high-rise buildings via a standard residential elevator (800mm door width). Its tailless slewing design eliminates the need for frequent adjustments when working near corners and pillars. An optional electric power system is available to meet indoor environmental protection requirements. One machine completes the entire process of crushing, digging, and slag removal.
Power: 13.6kW
Operating Weight: 1200kg
Bucket Capacity: 0.04m³
Maximum Digging Depth: 2.3m
Maximum Digging Height: 3.6m
Maximum Unloading Height: 2.5m
Travel Speed: 2.5km/h
Climbing Ability: 30°
Ground Pressure: 28kPa
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Comparison of mini excavator and manual demolition

Comparison Dimensions

Manual demolition

PIVOT mini excavator

Demolition methods

Sledgehammer and pneumatic pick

Hydraulic breaker for rapid crushing

Soil removal

Manual transport

Bucket for direct clearing

Indoor operations

Manual entry required

Can fit in elevator, no tail-end rotation

Spider Crane

For the installation of internal steel structures in large factories and commercial complexes, outdoor truck cranes are inaccessible, and indoor spaces are unsuitable. The PIVOT Spider Crane can drive into these spaces to precisely lift steel beams and equipment in confined areas. Wireless remote control operation allows the operator to observe the lifting process from a safe position with no blind spots. It can be accessed via freight elevators, enabling operations even in high-rise indoor spaces.
Rated lifting capacity: 1 ton
Maximum lifting height: 16 meters
Overall dimensions: 2.8×0.8×1.7m
Overall weight: 1.8 tons
Climbing ability: 30°
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Spider crane vs. Manual lifting

Comparison Dimensions

Manual labor + pulley system

PIVOT Spider Crane

Lifting capacity

Relies on multiple users pulling and dragging

Lifting capacity of 1 ton

Space adaptability

Requires ample space

Minimum passage width of 0.8 meters, can fit in elevators

Operating method

Multi-user collaboration

Wireless remote control, single-person operation

Skid Steer

During construction site work, accumulated debris, scattered materials, and a cluttered site affect work efficiency and safety. PIVOT skid steer loaders can quickly clear debris, transport materials, and level the site. Equipped with a sweeper, they can perform fine cleaning, keeping the construction site tidy. A quick-change device allows for seamless switching between different tasks, making one machine equivalent to multiple traditional machines.

Power: 36.8kW
Rated Load: 900kg
Machine Weight: 3400kg
Travel Speed: 0-18km/h
Climbing Ability: 30°
Attachments: Bucket, Hydraulic Breaker, Log Grapple, Sweeper, Trencher
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Comparison of skid steer loader and manual cleaning

Comparison Dimensions

Manual cleaning

PIVOT Skid Steer

Cleaning efficiency

Low

Can be equipped with bucket and sweeper for rapid operation

Multifunctionality

—

Multiple attachments can be switched

Customer Value

Engineer Value

Engineer Value

The inclined dimensions of the secondary structure pump facilitate construction organization design.

The loading and unloading machine's distance is adjustable from 6-16 meters, adapting to different sites.

The mini excavator's technical parameters can be clearly defined through the elevator.

Procurement Value

Procurement Value

The secondary structure pump frees up tower crane capacity, improving equipment utilization.

The loading and unloading machine replaces forklifts and manual labor, resulting in a faster return on investment.

Multiple products cover the entire construction process.

Owner Value

Owner Value

Secondary structure construction is carried out simultaneously with the main structure, shortening the overall construction period.

Reduced manual handling directly lowers costs.

Equipment investment is quickly recovered through labor cost savings.

Get in Touch

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Email

sales@pvtma.com

Phone

+86 177 0234 7124

Headquarters Address

27 Phoenix Second Street, Yongchuan District, Chongqing, China

Phone

+85 620 2998 8777

Branch Office Address

Sikerd Village, Naxaithong District, Vientiane Capital, Laos