EN ISO 11148-7:2012 PDF

Overview

EN ISO 11148-7:2012 / ISO 11148-7:2012 specifies safety requirements for hand‑held non‑electric power tools - grinders (pneumatic or hydraulic). The standard covers grinders used for grinding and cutting‑off with a wide range of abrasive products and wheels, including wire brushes, flap discs/wheels and diamond or reinforced (segmented) wheels. It is a type‑C standard that complements ISO 12100 and supports conformity with the essential requirements of EU Directive 2006/42/EC.

Key scope limits:

• Abrasive products with peripheral speed ≤ 80 m/s; cutting‑off wheels ≤ 100 m/s
• Abrasive product diameters ≤ 230 mm; cutting‑off wheels ≤ 250 mm
• Diamond/reinforced wheels up to 450 mm outside nominal diameter
• Excludes die grinders with collets (ISO 11148-9), polishers/sanders (ISO 11148-8), ICE‑driven cutting‑off machines (ISO 19432) and shaft‑mounted wire brushes

Key topics and technical requirements

ISO 11148-7 organizes safety and verification around practical hazards and protective measures:

• Mechanical safety: guarding, flanges, clamping forces and prevention of wheel/contact failures
• Thermal safety: managing heat generation and preventing burns or tool damage
• Noise and vibration: requirements for reduction measures and laboratory verification
• Materials and emissions: considerations for materials processed, lubricants and exhausts
• Ergonomics and controls: operator interface, grips, switches and prevention of unintentional start
• Verification and testing: specified tests for noise, vibration, deformation of flanges, guards, unintentional start and overall tool construction
• Information for use: marking, warnings, instruction handbook, operating and maintenance guidance

Annexes provide practical support: a list of significant hazards, examples of grinders covered, symbols for labels, common abrasive product types, and test/verification details.

Practical applications

This standard is used to:

• Design and manufacture safe pneumatic and hydraulic grinders
• Inform risk assessments and conformity demonstrations for CE marking in Europe
• Define test procedures for noise, vibration and mechanical integrity
• Prepare user manuals, maintenance instructions and safety labels

Who should use this standard

• Tool manufacturers and product designers (safety by design)
• Compliance and certification bodies (conformity assessment)
• Health & safety engineers and procurement teams (specification and selection)
• Technical trainers and maintenance personnel (safe operation and servicing)

Related standards

• ISO 12100 (general machinery safety principles)
• ISO 11148 series (other hand‑held non‑electric power tools: die grinders, sanders, etc.)
• ISO 19432 (ICE‑driven cutting‑off machines)

Using ISO 11148-7:2012 helps reduce operator risk, improve product reliability and demonstrates regulatory compliance for hand‑held non‑electric grinders.