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  • Electric Chain Hoist EHK type
  • Electric Chain Hoist EHK type

Electric Chain Hoist EHK type

No.2103

The H-Lift Electric Chain Hoist (EH-K type) is a highly efficient and durable mechanical lifting device specifically engineered for the safe, vertical hoisting of heavy loads in demanding industrial and commercial environments.

  • Versatile Configurations: Available in a wide range of lifting capacities and speeds (single or dual), with multiple suspension options including top hook, fixed, or trolley setups to suit specific application needs.
  • Rigorous Safety Controls: Designed to promote secure lifting practices; requires operators to verify hook safety catches, test load stability just clear of the ground, and allow the motor to fully stop before changing motion directions.
  • Heavy-Duty Application: Built for reliable, high-frequency material handling in manufacturing, construction, and warehousing, ensuring optimal workflow efficiency and long-term operational durability.
  • Strict Operational Guidelines: Engineered exclusively for vertical lifting. Safety protocols dictate that the load chain must never be used as a sling, and the unit must not be exposed to harsh elements or chemicals without prior consultation.
  • Technical Data

  • Electric Chain Hoist

  • Safe Use of Power Operated Hoist

EHK Series Dual Speed Electric Chain Hoist

Capacity: 0.5t - 7.5t | Precision Dual Speed Control

The EHK Series Electric Chain Hoist is designed for vertical lifting and lowering of materials with precision. Unlike standard single-speed units, the EHK series is equipped with a dual-speed motor, providing a Fast speed for productivity and a Slow speed for precise load positioning.

Key Features & Benefits

  • Lightweight Aluminum Housing Robust aluminum alloy body designed for excellent heat dissipation. Fully enclosed to prevent dust and moisture ingress.
  • Standard Dual Lifting Speed Comes with dual lifting speeds (Fast/Slow) as standard, allowing rapid handling and precise positioning for sensitive equipment.
  • Advanced Safety Systems
    • Magnetic Brake: Automatically engages upon power interruption.
    • Limit Switches: Prevent chain over-travel (up/down).
    • Low Voltage Control: 24V/36V pendant voltage for operator safety.
    • Negative Phase Protection: Prevents motor start if wired incorrectly.
  • Durable Chain & Hook High-strength Grade 80 (EN 818-7) load chain and 360° swivel forged bottom hook with safety latch.

Model Guide

  • S Models: Single fall of chain (High Speed).
  • D Models: Double falls of chain (Stable, Compact).
  • T Models: Triple falls of chain (Heavy Duty).

General Data

  • Duty Class: ISO M4 / FEM 1Am
  • Power Supply: 3-Phase (Voltage per request)
  • Control Voltage: 24V / 36V
EHK Electric Chain Hoist

Technical Specifications & Dimensions

*Refer to the diagram above to identify dimensions A, B, D, E, and Hmin (Minimum Headroom).

Item No. Capacity Work Group Lift Speed Hoist Motor Load Chain Falls Proof Load Hmin Dimensions (mm) N.W. Product Code
(t) (m/min) (kw) (mm) (kN) (mm) A B D E (kg)
EHK005S 0.5 1Am/M4 7.2 / 2.4 1.1 / 0.37 6.3 1 6.13 530 460 230 288 165 39 210300500
EHK010S 1 1Am/M4 6.8 / 2.3 1.5 / 0.5 7.1 1 12.25 650 520 260 300 176 51 210301001
EHK010D 1 1Am/M4 3.6 / 1.2 1.1 / 0.37 6.3 2 12.25 680 460 230 288 165 45 210301002
EHK020S 2 1Am/M4 6.6 / 2.2 3.0 / 1.0 10 1 24.5 800 615 295 430 265 98 210302001
EHK020D 2 1Am/M4 3.4 / 1.1 1.5 / 0.5 7.1 2 24.5 835 520 260 300 236 55 210302002
EHK030S 3 1Am/M4 5.6 / 1.9 3.0 / 1.0 11.2 1 36.75 845 615 295 430 320 103 210303001
EHK030D 3 1Am/M4 3.3 / 1.1 3.0 / 1.0 10 2 36.75 950 615 295 430 320 113 210303002
EHK030T 3 1Am/M4 2.2 / 0.7 1.5 / 0.5 7.1 3 36.75 950 520 260 350 205 72 210303003
EHK050D 5 1Am/M4 2.8 / 0.9 3.0 / 1.0 11.2 2 61.25 1030 615 295 430 325 125 210305000
EHK075T 7.5 1Am/M4 1.8 / 0.6 3.0 / 1.0 11.2 3 91.88 1380 615 295 505 320 180 210307500

An electric chain hoist is a mechanical lifting device used to raise and lower heavy loads vertically. Commonly found in industrial and commercial settings, these hoists facilitate the efficient movement of materials and equipment. Known for their durability and ease of operation, electric chain hoists are widely used in manufacturing, construction, and warehousing.

Key Features & Components

  • Chain Crucial component typically made of high-strength alloy steel. Available in various sizes and lengths to match the lifting capacity.
  • Hoist Motor Provides the necessary force to lift the load. Designed for heavy-duty operation to handle a wide range of loads.
  • Controls Mechanisms allowing operators to raise, lower, and move loads. Options include pendant controls, push-buttons, or radio remote controls.
  • Gearbox Transmits power from the motor to the chain sprocket/drum, ensuring smooth and controlled movement.
  • Chain Drum (Sprocket) The component around which the lifting chain operates. It winds up or pays out the chain to raise or lower the load.
  • Safety Features Includes overload protection (slipping clutch), limit switches (to prevent over-travel), and emergency stop buttons.
  • Lifting Capacity Ranges from a few hundred kilograms to several tons. Capacity must be matched strictly to application requirements.
  • Duty Cycle Refers to the duration the hoist can operate continuously without overheating (e.g., ISO M4, M5 ratings).
  • Mounting Options Can be hook suspended, fixed mounted, or attached to a trolley (manual or motorized) for horizontal movement.
  • Voltage & Power Available in various configurations (Single Phase or 3-Phase) to match facility electrical infrastructure.

How to Choose the Right Hoist?

  • Load Weight The maximum weight to be lifted determines the capacity you must buy. Always choose a hoist with a capacity higher than your max load.
  • Lifting Speed Consider required productivity. Single speed is standard, but dual speed (Fast/Slow) offers better precision for positioning.
  • Work Environment High temperatures can cause malfunctions; extremely low temperatures may cause cracking. Dust, moisture, or chemicals require special protection (IP54, IP65, or Stainless Steel).
  • Lift Height Determine how high the load needs to go. Higher lifts require longer chains and larger chain containers (bags), which may affect headroom.
  • Duty Cycle (Frequency) How often will the hoist run? Frequent starts/stops require a motor with a higher Duty Rating (ED%) to effectively disperse heat.

Electric chain hoists and motorized trolleys are powerful industrial tools designed to improve efficiency and reduce manual handling. However, improper use can lead to serious accidents. Operators must be trained and competent. The following guidelines are critical for the safe operation of H-Lift electric chain hoists (Series EHE, EHB, EHK, EHD, etc.).

⚠️ CRITICAL WARNING

NEVER lift, support, or transport people using this equipment.

NEVER lift loads over people.

NEVER exceed the Working Load Limit (WLL) marked on the hoist nameplate.

1. Pre-Operational Checks (Daily)

Before the start of each shift, the operator should perform a visual and functional inspection.

Visual Inspection

  • Load Chain: Check for nicks, gouges, twists, deformation, or lack of lubrication. Ensure the chain is seated correctly in the chain guide.
  • Hooks: Inspect top and bottom hooks for deformation, cracks, or wear. Ensure the safety latch is present and functional.
  • Connections: Ensure the hoist is securely attached to the trolley or suspension point.
  • Controls: Check the pendant control cable for cuts or exposed wires. Ensure buttons are not stuck.

Functional Test

  • Emergency Stop: Press the E-Stop button; the hoist should not operate. Twist to release.
  • Brake: Lift a small load slightly. Release the button. The load should hold immediately without slipping.
  • Limit Switches: Carefully run the hook to the upper and lower limits (without load) to ensure the motor stops automatically.
  • Trolley: If motorized, test left/right movement. Listen for unusual noises.

2. Operational Do's and Don'ts

✅ ALWAYS

  • Center the Hoist: Always position the hoist directly above the load's center of gravity before lifting.
  • Take up Slack: Slowly take up the chain slack until the load is taut before lifting fully.
  • Use Taglines: Use guide ropes (taglines) to prevent the load from swinging or spinning during transport.
  • Listen: Pay attention to abnormal sounds (grinding, clicking) which may indicate internal damage.
  • Read the Manual: Familiarize yourself with the specific specific manual for your model (EHB, EHK, etc.).

❌ NEVER

  • No Side Pulling: Never pull a load sideways. This damages the chain guide and housing. Hoists are for vertical lift only.
  • No Inching: Avoid excessive "inching" (rapid short presses of the button), as this overheats the motor and damages the contacts.
  • No Chain Wrapping: Never wrap the load chain around the load. Always use appropriate rigging slings.
  • No Two-Blocking: Do not use the limit switches as a routine method for stopping the hoist.
  • No Unattended Loads: Never leave a suspended load unattended.

3. Electrical & Power Supply

1
Voltage Check

Ensure the power supply matches the voltage indicated on the nameplate (e.g., 380V 3-Phase). Incorrect voltage can destroy the motor.

2
Phase Protection

Most H-Lift hoists (EHB/EHK/EHE) feature negative phase protection. If the hoist does not start, check if the power phases are wired correctly.

3
Environment (IP Rating)

Standard units are IP54 (Indoor/General). Do not use standard hoists in rain, heavy dust, or explosive environments unless specifically rated (e.g., CH-EP Explosion Proof series).

4
Duty Cycle

Respect the Duty Rating (ED%). Operating continuously beyond the rated duty cycle will overheat the motor and trip the thermal protection.

4. Maintenance & Lubrication

Regular maintenance extends the life of your equipment and ensures safety.

  • Lubrication: The load chain must be lubricated regularly. A dry chain wears out significantly faster. Use machine oil or gear oil, applying to the link contact points.
  • Chain Gauge: Periodically measure the chain link pitch and diameter to check for wear or stretching.
  • Brake Gap: The magnetic brake gap should be checked annually by a qualified technician.
  • Slip Clutch: The overload slipping clutch is factory set. Do not adjust it unless authorized.

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