ASME B30.7-2021 PDF

Full title and description

ASME B30.7-2021 — Winches (also published under the historical title "Base‑Mounted Drum Hoists"). This ASME B30 volume provides safety, design, installation, inspection, testing and maintenance rules and recommendations for power‑driven winches arranged for mounting on foundations or other supporting structures, typically used in industrial, construction and maritime applications.

Abstract

Volume B30.7 establishes provisions that apply to construction, installation, operation, inspection, testing and maintenance of foundation‑ or base‑mounted winches that use drums and rope and are powered by electric motors, internal‑combustion engines, compressed air or hydraulics. The volume also identifies equipment and applications excluded from its scope (for example, overhead hoists, mine hoists, capstans, and winches that are integral to other B30 equipment).

General information

• Status: Current (2021 edition; remains in effect unless superseded by a later ASME revision).
• Publication date: November 19, 2021.
• Publisher: American Society of Mechanical Engineers (ASME).
• ICS / categories: Lifting equipment / cranes and lifting appliances (ICS 53.020 — lifting equipment).
• Edition / version: 2021 edition (ASME B30.7:2021).
• Number of pages: Publisher and reseller listings report approximately 28–30 pages depending on formatting/delivery; many catalog entries list 28 pages while others list 30.

Scope

Applies to winches that are base‑ or foundation‑mounted and intended for moving loads using drums and rope. Covers power sources including electric motors, internal‑combustion engines, compressed air and hydraulic drive systems. Excludes overhead hoists, mine hoists, capstans, winches that are integral parts of other B30 equipment, and certain vehicle‑mounted or recreational winches (see the standard for full exclusion list). The volume addresses design, marking, installation, operation, inspection, testing, maintenance and safe use practices.

Key topics and requirements

• Definitions, terminology and classification of winch types and components.
• Design and construction requirements for drums, brakes, clutches, gears and foundations intended to support winches under load.
• Rated capacities, safe working loads, and marking/identification requirements.
• Installation and anchoring procedures, alignment, foundations and guarding.
• Operational rules: testing, commissioning, use limitations and operator qualifications.
• Inspection and maintenance protocols, periodic examinations, defect criteria and recordkeeping.
• Requirements for rope selection, spooling, reeving and acceptable rope/drum practices (refer to rope‑specific B30 volumes when applicable).
• Exclusions and interfacing guidance where other B30 volumes or industry standards apply.

Typical use and users

Intended for manufacturers, designers, equipment owners, maintenance personnel, safety and compliance officers, inspectors and operators working with industrial, construction and maritime winches. Common users include OEMs that build winches, facility maintenance teams, riggers and maritime deck crews, and organizations responsible for equipment inspection and workplace safety.

Related standards

ASME B30.7 is part of the ASME B30 series addressing cranes, hoists, rigging and lifting equipment. Related volumes commonly referenced with B30.7 include: B30.20 (Below‑the‑Hook Lifting Devices), B30.9 (Slings), B30.10 (Hooks), B30.16 (Overhead Hoists), and other B30 volumes covering specific crane types and lifting components. Users should also consider rope‑specific standards (e.g., ASME B30.30 / B30.31) and applicable national/regional crane safety regulations.

Keywords

Winches; base‑mounted drum hoists; drums; wire rope; rope spooling; rated capacity; safe working load; inspection; maintenance; installation; brakes; clutches; foundation mounting; ASME B30 series; lifting equipment.

FAQ

Q: What is this standard?

A: ASME B30.7-2021 is the ASME B30 volume that sets safety, construction, installation, inspection, testing and maintenance provisions for foundation‑ or base‑mounted winches used to move loads by drum and rope.

Q: What does it cover?

A: It covers design and construction requirements for winch components, marking and capacity information, installation and foundation practices, operational rules, testing and inspection intervals, maintenance practices, and exclusions where other B30 volumes or equipment‑specific standards apply.

Q: Who typically uses it?

A: Manufacturers, purchasers, owners, maintenance staff, inspectors, riggers, maritime crews and safety/compliance personnel who design, install, operate or maintain industrial and marine winches.

Q: Is it current or superseded?

A: The 2021 edition (ASME B30.7:2021) is the published edition; ASME lists it as the current 2021 volume. Users should confirm on ASME’s codes & standards listings for any revisions or later editions published after 2021.

Q: Is it part of a series?

A: Yes — B30.7 is one volume in the ASME B30 series (cranes, hoists, rigging and related lifting equipment); the series contains multiple volumes (B30.1 through B30.30 and related parts) that cover other crane and lifting‑equipment types and components.

Q: What are the key keywords?

A: Winches; base‑mounted drum hoists; drums and rope; rated capacity; inspection; maintenance; installation; ASME B30; lifting equipment.