When purchasing a running electric hoist (a type of electric hoist mounted on a trolley for horizontal movement), several critical factors must be considered to ensure safety, efficiency, and cost-effectiveness. Below is a structured guide to key considerations:

1. Core Technical Parameters

Lifting Capacity (Rated Load)

Definition: The maximum weight the hoist can safely lift under normal conditions.

Selection Criteria:

Choose a hoist with a rated capacity 10-20% higher than the heaviest load you plan to lift (to account for safety margins).

Example: If the maximum load is 3 tons, select a 3.2–3.5-ton hoist.

Avoid overloading, which can cause structural damage or accidents.

Lifting Height

Definition: The vertical distance from the ground to the hook when fully extended.

Selection Criteria:

Ensure the lifting height exceeds the tallest object you need to lift (e.g., in a warehouse with high shelves).

Consider future needs; opting for a slightly taller model may avoid upgrades later.

Lifting Speed

Definition: The rate at which the hoist raises or lowers the load (typically measured in meters per minute, m/min).

Selection Criteria:

Single-speed hoists (e.g., 8 m/min): Suitable for general-purpose lifting where speed is not critical.

Dual-speed hoists (e.g., 8/0.8 m/min): Ideal for precision tasks (e.g.,模具安装, equipment alignment) requiring slow, controlled movements.

Variable-frequency hoists: Offer infinitely adjustable speeds for high-precision applications.

Running Speed (Trolley Speed)

Definition: The horizontal speed of the trolley on which the hoist is mounted (measured in m/min).

Selection Criteria:

Faster speeds improve efficiency for large-area coverage (e.g., in logistics centers).

Slower speeds enhance stability for heavy loads or delicate operations.

Ensure the trolley speed matches the hoist’s lifting speed to avoid imbalance.

Rotation Radius (Work Radius)

Definition: The horizontal distance from the hoist’s rotation center to the farthest point the hook can reach.

Selection Criteria:

Choose a radius that covers your entire work area without requiring repositioning.

For narrow spaces (e.g., small workshops), opt for a compact model with a short radius (e.g., 1.5–3 m).

For large sites (e.g., construction sites), select a longer radius (e.g., 5–7.5 m).

Power Supply

Voltage: Common options include 220V (single-phase) for light-duty use and 380V (three-phase) for industrial applications.

Frequency: Ensure compatibility with local power standards (e.g., 50Hz in China, 60Hz in the U.S.).

Cable Length: Verify the power cable is long enough to reach the nearest outlet without strain.

2. Safety Features

Overload Protection

Function: Automatically stops the hoist if the load exceeds the rated capacity.

Importance: Prevents structural damage and accidents caused by overloading.

Selection: Ensure the hoist is equipped with a reliable overload limiter (e.g., electronic or mechanical).

Braking System

Types:

Mechanical brakes: Use friction to stop the hoist; suitable for light-duty applications.

Electromagnetic brakes: More precise and reliable, especially for heavy loads or frequent stops.

Selection: Prioritize electromagnetic brakes for industrial use.

Emergency Stop Button

Function: Allows immediate shutdown in case of danger (e.g., load slippage, operator error).

Importance: Critical for preventing accidents in high-risk environments.

Limit Switches

Upper/Lower Limit Switches: Prevent the hook from overtraveling, avoiding collisions with the ceiling or floor.

Selection: Ensure the hoist includes both upper and lower limit switches.

Explosion-Proof Design (if applicable)

Use Case: Required in hazardous environments (e.g., chemical plants, oil refineries) where flammable gases or dust may be present.

Selection: Choose models with explosion-proof certifications (e.g., ATEX, IECEx).

3. Structural & Material Quality

Housing Material

Options:

Aluminum alloy: Lightweight and corrosion-resistant, suitable for clean environments (e.g., food processing).

Steel: More durable and heat-resistant, ideal for heavy-duty industrial use.

Selection: Base your choice on the operating environment (e.g., humidity, temperature).

Chain/Rope Quality

Chain:

Grade 80/100 alloy steel: High strength and durability, suitable for heavy loads.

Galvanized finish: Resists corrosion, extending service life.

Rope:

Wire rope: More flexible but less durable than chains; suitable for lighter loads.

Selection: Prefer chains for industrial applications; ropes may suffice for light-duty use.

Gearbox & Motor

Gearbox:

Sealed design: Prevents dust and moisture ingress, reducing maintenance needs.

High-precision gears: Ensure smooth operation and longevity.

Motor:

Energy-efficient models: Reduce operating costs over time.

IP rating: Indicates protection against dust and water (e.g., IP54 for general industrial use).

4. Manufacturer & After-Sales Support

Reputation & Certifications

Look for:

ISO 9001 (quality management), CE (European safety), or other relevant certifications.

Positive user reviews and case studies in your industry.

Avoid: Manufacturers with a history of quality issues or poor customer service.

Warranty & Service

Warranty Period: Typically 1–2 years; longer warranties indicate confidence in product quality.

Service Network: Ensure the manufacturer has local service centers or authorized dealers for quick repairs.

Spare Parts Availability: Verify that critical components (e.g., brakes, chains) are readily available.

Customization Options

If needed: Check if the manufacturer can customize the hoist (e.g., non-standard lifting heights, special trolley designs).

5. Cost-Effectiveness

Initial Purchase Price

Balance: Avoid overly cheap models that may compromise safety or durability.

Example: A mid-range hoist from a reputable brand may cost 20–30% more than a budget option but last twice as long.

Operating Costs

Energy Efficiency: Higher-efficiency motors reduce electricity consumption.

Maintenance: Low-maintenance designs (e.g., sealed gearboxes) save time and money.

Downtime: Reliable hoists minimize production interruptions.

Total Cost of Ownership (TCO)

Calculate: Initial cost + maintenance + energy + potential downtime costs over the hoist’s lifespan.

Example: A

5,000hoistwithlowmaintenancemaybemorecost−effectivethana

3,000 model requiring frequent repairs.

6. Environmental & Operational Factors

Operating Environment

Temperature: Extreme heat or cold may require specialized components (e.g., heat-resistant motors).

Humidity: High humidity environments may necessitate corrosion-resistant materials.

Dust/Debris: Sealed designs prevent contamination of internal components.

Noise Level

Importance: Low-noise hoists are essential in noise-sensitive areas (e.g., hospitals, laboratories).

Selection: Look for models with noise ratings ≤70 dB (A).

Ease of Installation

Modular Design: Simplifies installation and relocation.

Clear Instructions: Ensure the manufacturer provides detailed installation manuals or videos.

Summary Checklist for Purchasing a Running Electric Hoist

Define Requirements:

Max load, lifting height, speed, radius, power supply.

Prioritize Safety:

Overload protection, brakes, emergency stop, limit switches.

Assess Quality:

Materials, gearbox, motor, certifications.

Evaluate Support:

Warranty, service network, spare parts.

Calculate Costs:

Initial price + operating expenses + TCO.

Consider Environment:

Temperature, humidity, noise, dust.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment