What Are Telescopic High Mast Poles?
Definition
Telescopic high mast poles (also known as raising and lowering high masts) are tall lighting structures, typically 15m to 40m in height, equipped with a luminaire carriage that can be lowered to ground level via an electric or manual winch system
Unlike fixed-head masts that require aerial lift trucks for maintenance, telescopic high masts allow one person on the ground to service the entire lighting system-safely, quickly, and cost-effectively
Core Components
| Component | Function |
|---|---|
| Pole Structure | Tapered octagonal steel sections, 3-4 sections telescopically assembled |
| Luminaire Carriage | Ring or frame holding 6-24 floodlights |
| Lifting System | Winch, cables, pulleys-lowers carriage to 1m-2.5m above ground |
| Guiding & Latching System | Guide wheels + automatic hooks, locks carriage securely at top |
| Electrical System | Control cabinet, trailing cables, IP65-rated luminaires |
| Lightning Protection | 1.5m air terminal + grounding electrode |
Core Advantages
🔧 Advantage 1: Ground-Level Maintenance – No Aerial Equipment Required
Traditional fixed high masts require bucket trucks or cranes for maintenance-costly, weather-dependent, and high-risk. Our telescopic high masts feature a lifting system that lowers the luminaire carriage to 1m-2.5m above ground, enabling safe, ground-level servicing
| Maintenance Method | Equipment | Time | Safety |
|---|---|---|---|
| Fixed Mast | Crane / Bucket truck | 2-4 hours | High risk, weather dependent |
| Telescopic Mast | Winch (manual/electric) | 15-30 minutes | Ground level, all weather |
🔧 Advantage 2: Modular Construction – Easy Transport and Assembly
The pole is manufactured in 3-4 telescoping sections, assembled via plug-in connections on-site . This sectional design:
Simplifies transport – No over-length shipping restrictions
Reduces logistics costs – Container-friendly dimensions
Enables quick installation – Sections are nested and assembled with minimal welding
🔧 Advantage 3: Dual Lifting Control – Manual + Electric Options
Every telescopic high mast can be equipped with either:
Electric winch – One-button operation for frequent maintenance
Manual hand crank – Backup operation during power outages
Combined system – Electric winch with manual override for maximum reliability
All systems feature self-locking mechanisms to prevent uncontrolled descent
🔧 Advantage 4: Premium Corrosion Protection – 25+ Year Service Life
| Process | Standard | Specification |
|---|---|---|
| Hot-Dip Galvanizing | GB/T 13912 / ASTM A123 | Internal and external coating, 80-100μm thickness |
| Powder Coating | - | Outdoor polyester coating, any RAL color |
| Service Life | - | 25+ years without corrosion |
Technical Specifications
Model Series
| Model | Height | Sections | Recommended Luminaire Count | Typical Application |
|---|---|---|---|---|
| HM-15 | 15m | 2-3 | 4-8 | Small yards, gas stations |
| HM-20 | 20m | 3 | 6-10 | Rail yards, small terminals |
| HM-25 | 25m | 3 | 8-12 | Airport aprons, highway interchanges |
| HM-30 | 30m | 3-4 | 12-16 | Seaports, large industrial sites |
| HM-35 | 35m | 4 | 16-20 | Major airports, stadiums |
| HM-40 | 40m | 4 | 20-24 | Extra-large facilities |
Pole Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Material | Q345B / Q460 / ASTM A572 GR50 / GR65 | High-strength steel |
| Section Shape | Octagonal / Conical / Polygonal | 8, 12, or 18-sided |
| Wall Thickness | 5mm – 20mm (tapered) | Based on height and wind load |
| Bottom Diameter | 300mm – 1200mm | Based on height |
| Top Diameter | 120mm – 300mm | For carriage mounting |
| Number of Sections | 2-4 sections | Plug-in assembled |
| Base Flange | 800-1200mm diameter × 30-40mm thickness | Reinforced |
Lifting System Specifications
| Parameter | Specification |
|---|---|
| Winch Type | Manual / Electric / Electric + Manual backup |
| Lifting Speed | 3-5 meters per minute |
| Working Load | 500kg – 3000kg |
| Steel Cable | 6mm-12mm, 7×19 construction, hot-dip galvanized |
| Safety Features | Gravity-activated pawls, self-locking mechanism, limit switches |
| Lowest Carriage Position | 1m – 2.5m above ground |
| Control Method | Push-button / Remote control |
Luminaire Carriage Specifications
| Parameter | Specification |
|---|---|
| Carriage Type | Circular ring / Rectangular frame |
| Luminaire Capacity | 6 – 24 luminaires |
| Luminaire Wattage | 400W – 1000W (LED or Metal Halide) |
| Carriage Material | Steel tube construction, fully galvanized |
| Guiding System | Guide wheels + guide arms, prevents lateral movement |
| Latching System | Automatic hook engagement at top position, cable unloading |
Electrical & Environmental Specifications
| Parameter | Specification |
|---|---|
| Ingress Protection | IP65 (luminaire), IP55 (junction box) |
| Wind Resistance | 160-180 km/h (45-50 m/s) |
| Operating Temperature | -40℃ ~ +50℃ |
| Lightning Protection | 1.5m air terminal + grounding electrode |
| Control System | Smart timer, PLC control, 4G IoT options |
| Luminaire Options | LED / Metal halide / High-pressure sodium |
| Color Options | Any RAL color |
Product Features
🔧 Feature 1: Telescoping Sectional Design
The pole is manufactured from 3-4 steel sections that telescope together during assembly This design:
Eliminates field welding – Sections connect via plug-in joints
Simplifies transport – Sections ship separately, no over-length permits required
Enables height flexibility – Same sections can achieve multiple heights
🔧 Feature 2: Electrically Driven Lifting System
The lifting system features a motor-driven winch with a 53:1 gear ratio and self-locking capability :
Electric operation – Push-button control from ground level
Manual backup – Hand crank for power outage scenarios
Self-sustaining design – No brake shoes, springs, or clutches required
Gravity-activated pawls – Winch locks positively when not in use
🔧 Feature 3: Automatic Latching Mechanism
When the luminaire carriage reaches the top position, it automatically latches and unloads the cable :
Mechanical hooks engage, locking the carriage to the pole top
Cables unload – No tension, extending cable life
Wind resistance – Carriage is rigidly fixed, not suspended by cables
Indicator plate at top shows hook engagement status
🔧 Feature 4: Guided Carriage Movement
The carriage features guide wheels and guide arms that prevent lateral movement during raising and lowering:
No swinging – Carriage travels straight up and down
Precise alignment – Ensures hooks engage correctly at top
Smooth operation – Reduces wear on cables and guide components
🔧 Feature 5: Weatherproof Construction
All components are built for long-term outdoor exposure:
Hot-dip galvanized – Full internal and external coating, 80-100μm
IP65-rated luminaires – Dust-tight, protected against water jets
IP55 junction boxes – Cast aluminum, weatherproof
Internal cable routing – Protected within the pole structure
🔧 Feature 6: Smart Control Compatibility
Our telescopic high masts can integrate with modern control systems:
PLC-based control for precise operation
4G IoT monitoring – Remote status, fault alerts, energy data
Auto on/off – Timers or photocell sensors
Partial lighting – Time-controlled switching of selected luminaires