HENAN MINE CRANE / ELECTRICAL ISOLATION

Insulated Overhead Cranes for Strong-Current Process Handling

Compare QY and QYE directly. Select one or two lifting points from the load geometry, then define every electrical-isolation interface and acceptance test from your plant specification.

Compare QY and QYE Send the electrical specification ↗

2 manufacturer models1 or 2 lifting positions

Henan Mine Crane QY insulated hook overhead crane

MODEL QY Insulated hook bridge crane

TWO CONFIGURATIONS / ONE ELECTRICAL SAFETY BRIEF

Choose the lift path before the insulation schedule.

QY covers a single principal lifting position. QYE adds a second insulated trolley for coordinated long-load handling. In both cases, capacity and insulation performance are separate engineering decisions that require the site drawings and electrical specification.

Single-trolley insulated bridge

QY is the direct choice when one principal hook can complete the lift and the current path needs defined electrical separation.

Explore models ↗02

Dual-trolley insulated bridge

QYE adds independent or coordinated lifting points. Calculate each trolley load from the actual center of gravity and rigging.

Explore models ↗

PROJECT SAFETY BASIS

Insulation values are not universal model ratings. Submit the process voltage, isolation points, test method and acceptance limits. If the site also has an explosive atmosphere, specify its separate protection requirements.

Approval checklist ↗

01 / CONFIGURATION

Single-trolley insulated bridge

QY is the direct choice when one principal hook can complete the lift and the current path needs defined electrical separation.

MODEL QY

HENAN MINE CRANE / ELECTRICAL ISOLATION

One insulated lift path around strong-current processes.

Insulated Hook Overhead Crane

QY provides a double-girder bridge with electrical separation at designated lifting and connection interfaces. Define the process voltage, energized equipment location and required test criteria before selecting the crane and hook system.

SUITABLE TASK: Electrolysis, power and other processes where crane current paths must be controlled.
BUYER CHECK: Insulation interfaces, process voltage, resistance and withstand-test acceptance, and runway geometry.

Technical specifications

Rated capacity	10–50 t	Crane span	10.5–31.5 m
Lifting height	6–33 m	Work class	Confirm by project
Hoisting speed	Confirm by project	Bridge structure	Top-running double girder / one principal trolley
Lifting mechanism	Insulated hook lifting system
Power supply	3-phase AC 380 V / 50 Hz listed; destination supply to confirm	Control	Specify cabin, pendant or remote and operating sequence
Insulation basis	No universal insulation rating; set voltage and resistance acceptance from the process specification
Isolation interfaces	Pads, sleeves and plates at designated lifting and connection interfaces
Acceptance test	Specify test voltage, duration, resistance, method and witness requirements
Ambient conditions	Record radiant heat, corrosive medium, humidity and contamination

Request QY proposal View model details ↗Request the isolation diagram, GA drawing, test method and handover documents.

02 / CONFIGURATION

Dual-trolley insulated bridge

QYE adds independent or coordinated lifting points. Calculate each trolley load from the actual center of gravity and rigging.

Henan Mine Crane QYE double-trolley insulated overhead crane

MODEL QYE

HENAN MINE CRANE / ELECTRICAL ISOLATION

Two insulated lifting points for long or uneven loads.

Double-Trolley Insulated Overhead Crane

QYE adds two lifting trolleys that can work independently or in a coordinated sequence. Design the insulation interfaces and each trolley rating around the actual center of gravity, lifting-point spacing and maximum load reaction.

SUITABLE TASK: Large process equipment requiring electrical isolation and two hook positions.
BUYER CHECK: Combined and individual ratings, hook-height tolerance, trolley separation and insulation tests.

Technical specifications

Rated capacity	32/5 + 32/5 t listed configuration	Crane span	10–35 m
Lifting height	6–30 m	Work class	A4–A6
Hoisting speed	0.8–10 m/min	Bridge structure	Top-running double girder / two trolleys
Lifting mechanism	Two insulated trolley lifting systems
Power supply	380 V / 50 Hz; 220–660 V / 60 Hz options listed	Control	Independent or coordinated trolley operation; encoder and inverter controls
Insulation basis	No universal insulation rating; approve the project electrical-isolation schedule
Isolation interfaces	Pads, sleeves and plates at specified trolley and connection interfaces
Acceptance test	Specify per-trolley and complete-system insulation acceptance
Ambient conditions	Confirm heat, corrosion, humidity and maintenance exposure

Request QYE proposal View model details ↗Request the isolation diagram, GA drawing, test method and handover documents.

BEFORE THE PURCHASE ORDER

Make the insulation test part of the contract.

Specify the insulation arrangement, test criteria, load and bridge dimensions for your exact process.

Electrical design basis

Process voltage, energized equipment envelope, isolation interfaces, applicable plant standard and safe work method.

Mechanical and tandem loads

Capacity, each trolley reaction, span, lift height, hook spacing, duty, runway loads and a dimensioned GA drawing.

Acceptance evidence

Insulation test voltage, resistance, duration and method; factory tests, component schedule, inspection records and installation scope.

ENGINEERING RFQ

Send the load plan and electrical specification.

Provide the process voltage, required isolation points, acceptance criteria, maximum suspended and per-trolley loads, span, hook height, travel length, duty, ambient conditions and destination. Request a model-specific technical schedule before order.

Send your project brief

INCLUDE WITH YOUR ENQUIRY

Process voltage and energized equipment location
Required insulation interfaces and test criteria
Total and per-trolley load, span, height and duty
Runway drawing, ambient conditions and destination

Insulated Overhead Cranes for Strong-Current Process Handling

Choose the lift path before the insulation schedule.

Single-trolley insulated bridge

Dual-trolley insulated bridge

Single-trolley insulated bridge

One insulated lift path around strong-current processes.

Insulated Hook Overhead Crane

Dual-trolley insulated bridge

Two insulated lifting points for long or uneven loads.

Double-Trolley Insulated Overhead Crane

Make the insulation test part of the contract.

Electrical design basis

Mechanical and tandem loads

Acceptance evidence

Send the load plan and electrical specification.

Compare all overhead crane structures.