SPACEMASTER® EX CLASS I, DIV 1 HOIST
The Spacemaster® EX Class I, Division 1 Hoist hazardous location hoist is certified to meet Class I, Division 1, Groups C & D and T4 temperature class.
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SPACEMASTER® EX CLASS I, DIV 2 Hazardous Location & Explosion-Proof HOIST
The Spacemaster® EX Class I, Division 2 hoist is an explosion-proof hoist for hazardous locations, certified to meet Class I, Division 2, Groups B, C and D and T3...
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Anchorage Municipal Explosion Proof Case Study
As Anchorage, Alaska’s oldest utility, Anchorage Municipal Light & Power (ML&P) undertook an expansion in 2014.
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Class I, Div 1 vs Class I, Div 2
Selecting a hoist for a hazardous location starts with the area classification. For Class I areas, the question is whether the space is Division 1 or Division 2.
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Hoists for Classified Lifting Environments

R&M hazardous location hoists provide NEC-rated configurations for Class I, Division 1 and Division 2 environments.

Overview

Hazardous location hoists must match the classification of the area where they operate. When hazardous materials create a classified area, appropriate equipment protection is mandatory and must meet the facility’s equipment requirements as determined by a multidisciplinary team of engineers and safety professionals.

The Spacemaster® EX wire rope hoist lineup includes Class I, Division 1 and Division 2 models. Each configuration combines lifting capabilities with electrical protection suited to its rating, with mechanical features selected for the application.

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Key Features of Our Hazardous Location Hoists

Our hazardous location hoists offer features that address hazardous area requirements and everyday lifting needs. Available features vary by model and configuration.

  • Class I ratings: Division 1 models are certified for Groups C and D with Temperature Class T4. Division 2 models are rated for Groups B, C and D with Temperature Class T3.
  • Ignition-protected controls: Electrical components, enclosures and wiring address potential ignition sources. Division 1 models include intrinsically safe circuits for control commands and limit switches.
  • Space-efficient design: A large drum diameter supports low headroom, close hook approaches and near true vertical lift with single reeving.
  • Lifting configurations: Single or double reeved hoists, multiple lifting heights and a range of trolley options support different lifting requirements.
  • Spark-resistant components: Depending on the application, configurations may include optional bronze-coated hooks, brass wheels, brass trolley drop lugs or stainless steel wire rope.

 

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Applications

Class I hazardous location hoists support lifting in areas where flammable gases or vapors are or may be present in ignitable quantities. Potential applications include:

  • Chemical processing and solvent storage: Moving equipment or materials within classified processing, storage or transfer areas.
  • Oil, gas and refining: Supporting maintenance and material handling near classified fuel handling or processing systems.
  • Paint and aerospace finishing: Handling components in areas where coatings or solvents can release flammable vapors.
  • Wastewater treatment: Lifting pumps and other equipment in classified areas where flammable gases may accumulate.
  • Battery handling and charging: Supporting lifting operations in classified areas where charging can release hydrogen.

Requirements depend on the specific lifting area and materials present. An industry or facility type alone does not determine the required hoist rating.

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Define Your Hazardous Location Hoist Requirements

Before requesting a quote, gather the area classification and operating details needed to select a suitable hoist. Review the complete lifting system, including the trolley, bridge, controls, wiring, brakes, hooks, load block and electrical enclosures.

Provide the following information:

  1. Full area classification: Confirm the Class, Division, Group and required Temperature Class. Class identifies the hazard type, Division describes the conditions under which it may be present, Group identifies gas or vapor ignition characteristics and Temperature Class limits equipment surface temperature.
  2. Hazardous materials present: Identify the gases or vapors that determine equipment suitability.
  3. Lifting requirements: Specify load weight, lift height, suspension, duty cycle and operating frequency.
  4. Mechanical protection requirements: Confirm which spark-resistant components the application requires.
  5. Controls and operating conditions: Identify pendant or radio control preferences, power supply and ambient temperature.

Talk With R&M About Hazardous Location Hoists

R&M Materials Handling can help evaluate hazardous location hoist requirements, spark-resistant hoist components, ignition-protected controls and hazardous location crane systems. Contact R&M or an authorized R&M distributor to discuss your application.