ZYM5322JQJ40D626HZ 26m Bridge Inspection Vehicle

Name: 26m Sinotruk Bawang Bridge Inspection Vehicle (3-Section Telescopic Platform)
Brand: Yutong
SKU: ZYM5322JQJ40D626HZ
Availability: InStock

Product Overview

The ZYM5322JQJ40D626HZ Sinotruk Bawang 4-axle bridge inspection vehicle represents the upper end of Yutong's Bawang-series under-bridge access lineup. Where the 24-meter 2-section model targets standard highway overpasses, the 26-meter 3-section variant is engineered for wide-span bridges, cable-stayed approaches, and arch bridges where the inspector needs both extended reach and the ability to retract into confined positions beneath the deck.

The platform uses three sections driven by two stages of chain transmission. Chain drive was selected for the telescoping mechanism because it delivers consistent, repeatable extension lengths without the creep and drift associated with long hydraulic cylinder strokes. The platform width has been widened to 1.32 meters — noticeably broader than the 2-section design — so two inspectors and a set of non-destructive testing instruments can work side by side on the same walkway.

Fabricated from 6-series high-strength aviation aluminum alloy, the 3-section platform achieves a 35 percent weight reduction compared to a steel equivalent. The extra 5 percent savings versus the 2-section platform reflect the redesigned load paths and optimized section geometry in the longer telescoping structure. This weight savings directly benefits axle load compliance on the 4-axle chassis, which is rated at the 32,000 kg gross vehicle mass limit.

The retracted reach is a defining specification of this model. The 3-stage platform collapses to a minimum inspection reach of 10 meters — a capability the 2-section platform cannot match. This minimum reach matters on cable-stayed bridges, arch bridge soffits, and pier-adjacent zones where a fully extended 24-meter platform would overshoot the work area and place inspectors in the shadow of a pier or stay cable rather than under the girder they need to inspect.

Side-crossing width is 4.9 meters when the main boom is fully extended, slightly narrower than the 2-section model's 5.2 meters because the longer boom trades a small amount of horizontal side reach for additional longitudinal span. The railing-crossing height remains 6.4 meters, sufficient to clear typical highway median barriers and guardrail systems.

The outrigger system mirrors the 2-section model's two-stage telescopic design, with half-extended mode limited to under 3 meters of operating width for emergency lane and ramp work. Real-time outrigger cameras, the anemometer (Beaufort 6 alarm), three proximity switches on the second rotation, dual braking, automatic pressure compensation, and the upper-body travel lock are all standard equipment on this configuration.

The vehicle rides on the same air-suspension Sinotruk Bawang chassis as the 24-meter model, but the overall length is shorter — 12,950 mm versus 13,720 mm — because the telescoping platform packages more compactly when retracted. This shorter overall length improves maneuverability on tight bridge approach ramps and reduces turning radius on urban roads.

Yutong delivers the ZYM5322JQJ40D626HZ as a factory-integrated system with the same 8 percent cross-slope tipping test, outrigger camera calibration, and operator training package as the rest of the Bawang series. The 3-section platform is the right choice when your bridge inventory includes wide spans, cable-stayed structures, or arch bridges with limited under-deck clearance.

Technical Parameters

ZYM5322JQJ40D626HZ — Standard Configuration (3-Section Platform)
Chassis & Powertrain
Chassis model	/	ZZ1327N466GF1K (Sinotruk Bawang)
Engine model	/	MC07H.35P-61
Rated power	kW / PS	258 / 350
Emission standard	/	China VI
Max driving speed	km/h	110
Dimensions & Weight
Wheelbase	mm	1800 + 4575 + 1400
Overall (L × W × H)	mm	12950 × 2550 × 4000
Total mass	kg	32000
Working Range
Under-bridge horizontal working range	m	0 – 26
Max platform reach (3-section)	m	26
Min platform reach (retracted)	m	10
Platform width	m	1.32
Max under-bridge depth	m	8.5
Max side-crossing width	m	4.9
Max railing-crossing height	m	6.4
Platform Capacity & Motion
Platform uniform load	kg	800
Platform front-end load	kg	400
First rotation range	°	0 – 90
Second rotation range	°	0 – 180
Self-Propelled System
Drive type	/	Hydraulic transfer case drive
Travel speed	m/min	15.00

Key Features

1. 3-Section Telescopic Platform — Extended Reach, Compact Retracted Length

Two stages of chain-driven telescoping extend the platform to 26 meters and retract it to just 10 meters. This wide operating window lets the inspector position the platform precisely under the girder, whether the bridge is a wide highway span or a tight arch bridge opening. Chain drive ensures smooth, repeatable extension without hydraulic drift.

2. Wider 1.32 m Aluminum Platform

The platform has been widened to 1.32 meters to support two inspectors and NDT equipment working side by side. The 6-series aviation aluminum construction cuts platform weight by 35 percent versus steel, improving chassis load margin and fuel efficiency during road transit.

3. Access to Confined Under-Deck Spaces

The 10-meter minimum reach is the differentiator. It lets the vehicle work beneath stay cables, around pier columns, and inside arch bridge soffits where a 2-section platform would overshoot the target area and anchor the inspector against an obstruction rather than under the girder.

4. Compact 12,950 mm Overall Length

Despite the longer platform reach, the retracted vehicle is shorter (12,950 mm) than the 24-meter 2-section model (13,720 mm). The telescoping platform packages more compactly when stowed, improving maneuverability on approach ramps and tight urban roads.

5. Full Load Capacity Without Derating

The 3-section platform carries its full 800 kg uniform load and 400 kg front-end load at any extension, without the derating that applies to the 2-section model when its boom is fully extended. This is a structural advantage of the chain-driven telescoping design.

6. Standard Safety and Convenience Package

Anemometer (Beaufort 6 alarm), outrigger monitoring cameras, three proximity switches on the second rotation, dual braking, automatic pressure compensation, upper-body travel lock, water tank, and diesel generator are all standard. Every unit passes an 8 percent cross-slope tipping test before delivery.

Applications

Wide-Span Highway Bridge Inspection

The 26-meter reach covers wide multi-lane highway bridges, long-span box girders, and bridge decks where the inspector needs to work well beyond the edge of the shoulder.

Cable-Stayed and Arch Bridge Access

The 10-meter minimum reach lets the platform navigate around stay cables, pylons, and arch soffits to inspect under-deck structures that fixed-length platforms cannot reach.

Two-Person Inspection Workflow

The 1.32-meter wide platform supports an inspector plus a technician carrying NDT equipment, improving inspection throughput per stop compared to a single-person platform.

Urban and Ramp Maneuvering

The shorter 12,950 mm overall length and under-3-meter half-extended outrigger width make the vehicle suitable for urban arterial bridges, tight ramps, and narrow roadways where longer units cannot position safely.

Frequently Asked Questions

What makes the 3-section platform different from the 2-section design?

The 3-section platform uses two-stage chain-driven telescoping sections to reach a maximum inspection reach of 26 meters, with a minimum reach of just 10 meters. The wider 1.32-meter platform accommodates more inspectors and tools side by side. The 2-section model reaches 24 meters with a simpler overlap design but cannot retract to as small a minimum span.

What is the minimum working reach of this vehicle?

The 3-section platform retracts to a minimum inspection reach of 10 meters. This compact retracted length lets the vehicle access tight spaces such as stay cables on cable-stayed bridges, arch bridge under-deck openings, and narrow culverts where a fixed-length platform cannot position itself.

What chassis and engine powers the ZYM5322JQJ40D626HZ?

It uses the same Sinotruk Bawang 4-axle chassis (ZZ1327N466GF1K) with MC07H.35P-61 engine rated at 258 kW (350 PS), meeting China VI emission standards. Overall length is 12,950 mm — 770 mm shorter than the 24m model, thanks to the more compact telescoping platform package.

How much load can the 3-section platform carry?

The 3-section platform supports a uniform distributed load of 800 kg and a front-end load of 400 kg, without the load derating that applies to the 2-section model at full boom extension. The 6-series aluminum alloy construction saves 35 percent of platform weight versus steel.

What is the side-crossing capability of the 26m 3-section model?

Maximum side-crossing width is 4.9 meters (narrower than the 5.2m of the 2-section model due to the longer boom), with a railing-crossing height of 6.4 meters. In half-extended outrigger mode, the operating width stays within 3 meters, suitable for narrow urban lanes and ramp work.

Which bridges is the 26m 3-section model best suited for?

This model is ideal for wide-span highway bridges, cable-stayed bridge approaches, arch bridges with limited under-deck clearance, and any project where the inspector needs both maximum reach (26m) and minimum retracted length (10m) to navigate around piers and stay cables. The wider 1.32m platform supports two inspectors plus NDT equipment.

Does Yutong export this bridge inspection vehicle internationally?

Yes. Yutong Heavy Industries exports bridge inspection vehicles to over 60 countries across Asia, Africa, the Middle East, South America, and Eastern Europe. We provide factory-direct sales, spare parts support, and operator training with each delivered unit. Contact our export team for pricing, lead time, and regional availability.