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Product Overview
STL-38J Self-Propelled Telescopic Boom Lift with 40.2 m Working Height
Onchtech STL-38J self-propelled telescopic boom lift provides a 40.2 m working height, up to 25.4 m horizontal outreach, and 300 kg/460 kg platform capacity for large exhibition venues, stadium construction, and power plant maintenance. Features Cummins power, 4WD/4WS drive, and OEM/ODM configuration customization.
- Platform Capacity
- 300 kg / 460 kg
- Drive and Steering
- 4WD × 4WS
- Maximum Horizontal Outreach
- 25.4 m / 21.4 m
- Power Source
- Cummins
- Gradeability
- 40%
- Maximum Working Height
- 40.2 m
Core Advantages
High-Reach Access
Heavy-Duty Platform Loading
Long Horizontal Coverage
X-Link Extension Bridge
Dual Slewing Reducers
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Product Parameters
| Dimensions | Performance | ||
|---|---|---|---|
| Max Working Height | 40.2m | Load Capacity | 300kg/460kg |
| Max Platform Height | 38.2m | Max Occupants | 2 |
| Max Horizontal Reach | 25.4m/21.4m | Travel Speed (Stowed) | 4.5km/h |
| Length – Stowed [D] | 14.5m | Travel Speed (Raised) | 1.1km/h |
| Width – Stowed [E] | 2.49m | Gradeability (Stowed) | 40% |
| Height – Stowed [C] | 3.14m | Inside Turning Radius (Extended) | 2.94m |
| Platform Size [A×B] | 2.44m*0.91m | Inside Turning Radius (Stowed) | 8m |
| Wheelbase [F] | 4.17m | Outside Turning Radius (Extended) | 6.2m |
| Ground Clearance [G] | 0.48m | Outside Turning Radius (Stowed) | 10m |
| Turntable Tail Swing | 2.05/1.18m | ||
| Max Allowable Tilt Angle | 5° | ||
| Turntable Rotation | 360° | ||
| Tires | 445/50D710 | ||
| Max Ground Noise Level | ≤82dBA | ||
| Power | Weight | ||
| Power Source | Cummins | Standard Weight | 22900kg |
| Fuel Tank Capacity | 170L | ||
| Drive / Steering | 4WD*4WS | ||
Product Details
Onchtech Self-Propelled Telescopic Boom Lift
STL-38J: Telescopic Boom Platform for Ultra‑High and Long‑Span Operations
STL-38J is a 38‑meter‑class self‑propelled telescopic boom lift from Onchtech, designed for high‑altitude construction tasks requiring long‑reach coverage, such as large‑building facades, venue domes, and industrial facility structures. The straight boom structure delivers the platform to high and distant work points, making it suitable for engineering contractors, equipment rental companies, project purchasers, and industrial maintenance units, helping reduce the need for frequent machine repositioning between high‑altitude work locations.
Aerial Work Capability
40.2 m
Maximum Working Height
Indicates the maximum working height the platform can reach, suitable for overhead construction points on large‑venue roof components, industrial towers, and high‑rise building exteriors.
25.4 m
Maximum Horizontal Reach
Used to cover remote work areas beyond equipment, structures, or obstacles, making it a key selection factor for applications with horizontal spans such as facade installation and dome closure.
300 kg / 460 kg
Platform Load Switching
Selectable 300kg or 460kg load configurations provide corresponding capacity for personnel carrying tools and construction materials to high‑altitude work positions.
Self‑Propelled Chassis
Work Point Mobility
The machine is suitable for continuous operations across multiple high‑altitude points on large projects. Actual movement and access conditions should be verified against on‑site ground, slopes, passageways, and transport routes.
Boom Slewing and Heavy‑Load Configuration
Dual Slewing Reducer System
STL-38J is equipped with a dual slewing reducer system to improve boom motion performance during high‑altitude slewing, suitable for large projects with requirements for working angle coverage and rotation smoothness.
X‑Type Telescopic Link Axle‑Widening Design
The boom features an X‑type telescopic link axle‑widening design that supports structural stability during ultra‑high extension, making it a core structural characteristic of this heavy‑load telescopic boom lift.
Cummins Power Matching
The machine is matched with a Cummins engine, providing power support for high‑altitude extension, heavy‑load operations, and on‑site equipment operation. Onchtech can discuss branding and OEM/ODM cooperation adaptation based on procurement requirements.
Application Scenarios
The working height, horizontal reach, and load switching capabilities of STL-38J make it suitable for the following representative tasks requiring high‑altitude installation, inspection, or component handling:
Large Exhibition Center Dome Assembly
Used for dome component installation, connection, and inspection. The horizontal reach helps cover elevated nodes located away from the machine's parking position.
Stadium Exterior Enclosure Construction
Suitable for high‑altitude installation of irregular facade panels, connectors, and edge‑sealing areas, meeting both high‑level and long‑span coverage requirements.
Power Plant Cooling Tower Structural Maintenance
Designed for high‑altitude structure inspection, component maintenance, and tool/material transport tasks, with configurable load options based on operational requirements.
Suitable Buyers and Selection Considerations
This machine is suitable for engineering contractors handling large‑scale construction, industrial facility maintenance, and high‑altitude installation projects, as well as rental companies, project purchasers, and industrial maintenance units requiring 40‑meter‑class heavy‑load telescopic equipment. For tasks that require covering high and distant work points while considering tool and material loads, STL-38J serves as a key model for evaluation.
When selecting, it is recommended to provide Onchtech with the target working height, horizontal coverage distance, planned load, on‑site ground conditions, access and transport restrictions, and project location requirements. Based on this operational information, equipment configuration and delivery suitability can be further confirmed.
Hunan Hongchang Machinery Co., Ltd.
Full-Chain Smart Manufacturing; Full-Scope Engineering
Company Profile
50,000+ m²
Building area
20+ countries and regions
Product and service coverage
Within 1 hour
Customer response
100+
Global customers
Manufacturing & Partnership Capabilities
OEM / ODM / OBM customization
Supports customization of complete machine configuration, structure, brand, and product development to meet the needs of different markets and channels.
R&D and manufacturing system
Capable of collaborative development of complete machines, hydraulics, power systems, and structural components, supporting continuous product development and iteration.
Global delivery and service
Provides product delivery, technical support, spare parts, and after-sales service for global markets.
Emission adaptation for global markets
Covers emission standards such as China Stage II, China Stage III, China Stage IV, Euro V, and EPA, and supports power and emission configurations for different countries and regions.
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