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Quantum™ Series
1/8 metric ton lifting capacity

Features and Benefits

1. Eyebolt suspension. Self-alignment: An eyebolt suspension is used with motorised and plain trolleys. Unlike rigid suspensions, it allows the hoist to pivot and align itself to the direction of the load pull, which decreases the risk of component failure and improves load chain and guide wear.

2. Overload clutch for asset protection. The overload clutch is factory set to limit Quantum from lifting loads in excess of 150% of rated hoisting capacity. This protects all your assets – the hoist, your plant structure, and, most importantly, your operator.

3. Gear case. Smooth operation, extended service life: Double or triple-reduction steel alloy gears are precision cut and hardened for reduced friction and longer life. A helical/spur gear combination provides “grab free” movement and quiet, reliable operation. Optimum lubrication: Gears are lubricated with a semi-liquid grease instead of oil, which is less likely to leak, eliminates oil level checks and clings to the gears even after long idle periods. Quantum will even work upside down.

4. Chain guide and wheel. Proactive alignment: A “floating” chain guide precisely feeds chain onto a machined-matched five-pocket chain wheel. This system insures smooth, jam resistant operation and extends load chain, guide and wheel chain life.

5. Optimised load chain. Quantum load chain is precision formed from Grade 80 alloy steel, case hardened and zinc plated. The plating is an “infusion” process, which forms a molecular bond with the alloy. The result: premium-quality chain that attracts and retains lubrication and resists corrosion and fatigue. Controlled elongation: Quantum chain is engineered to elongate a minimum of 10%. This ability to stretch reduces the possibility of catastrophic failure under sudden loading. Any “chain chatter” is a clear indication to check and/or replace the chain.

6. Motors. High starting torque: Quantum motors are a totally enclosed non-ventilated (TENV) squirrel cage design. The H4 duty classification of three phase model allows 300 starts and 30 minutes “on time” per hour. Class F insulation allows a total thermal rating of 145°C at a 1.0 service factor, instead of the more common Class B insulation of 120°C. Quantum motors can take the heat! Phased to your needs: Single phase motors are available as 115 or 230 volt. Because single-phase motors are subject to low voltages that create higher motor temperatures, these Quantum hoists are equipped with “klixons,” bimetal heat switches that prevent motor burnout. Three phase motors are available in 230, 380, 460 and 575 volts, single and dual speeds. The 230/460 volt, single speed motors are field reconnectable. Dual speed motors feature 4, 5, or 6 to 1 high to low speed ratios instead of the typical 3 to 1 ratios. The advantages are unsurpassed load control, reduced cycle time and improved productivity. The overload clutch and Class F insulation eliminate the cost of “klixons”.

7. Brake. Metal discs stack up against wear: Quantum has a state-of -the-art AC motor brake employing all-steel discs. Multiple stacking significantly increases braking surface area, reducing wear and extending life. This system eliminates breakage common with fibre discs and the heavier springs and DC solenoids they require. Unlike fibre discs, steel discs create no brake dust or residue that can gum up electrical parts and make lubricants abrasive. Quantum brake discs-guaranteed for the life of the hoist.

8. Electrical controls. Safety first pendent: Quantum’s safety-first pendent control handles are comfortable and fit securely in the operator’s hand. Each low voltage (42 volt) control handle integrates a large, red emergency stop button. Operating buttons are clearly marked with high contrast arrows, feature soft push action and are horizontally aligned for easier operation. Emergency shut-off: Activated from the pendent handle, the mainline contactor disconnects power to the hoist and trolley motor providing “shut-off protection” in an emergency situation. Easy accessibility: Quantum enclosures are weatherproof, NEMA 3R rated. Removal of just four fasteners (slot-head on the electrical parts cover and allen-head on the mechanical parts cover) reaches components. Since electrical and mechanical components can be accessed separately, service is quick and clean.

9. Limit switches. Fail-safe limits: Quantum limit levers are recessed in the hoist enclosure. This clean, obstruction-free assembly virtually eliminates accidental activation of switches. Upper and lower switches are activated by the hook and endstop, eliminating time-consuming adjustments.

Additional standard features

  • Complete unit is UL and C-UL listed (except 380 volt units). Listing number is 5D48.
  • Meets I-R’s interpretation of ANSI B30.16 and pertinent European FEM standards
  • Light weight, high tensile strength, die cast aluminium housing
  • NEMA 3R hoist enclosure and NEMA 4X pendent enclosure
  • Trolleys fit tapered or flat flange beams
  • Hook, eyebolt, push trolley or motorised trolley suspensions
  • Safety lugs on all trolleys
  • Anti-tip lugs on motorised trolleys
  • Well balanced, compact modular design


  • 110 volt controls
  • Trolley motor brake
  • Chain containers for various lifts