ISO 5611-4:2015

Overview - ISO 5611-4:2015 (Cartridges, type A, Style J)

ISO 5611-4:2015 specifies requirements for cartridges, type A, style J, intended for use with indexable inserts (hard metal, ceramic or other cutting materials). Style J cartridges are defined by a cutting-edge angle κr = 93° for end cutting and are primarily designed for internal turning operations. The standard covers dimensional rules, designation, material, holding methods and marking to ensure interchangeability and safe use in turning tool assemblies.

Key topics and technical requirements

• Scope and geometry
  • Applies to type A cartridges with holes for fastening screws, style J (κr = 93°).
  • Pictorial representations are indicative; specified dimensions in the standard govern actual design.
  • Dimensions and sectional drawings are provided for multiple tool heights (examples: h = 8, 10, 12, 16, 20, 25 mm).
• Dimensions and tolerances
  • Detailed dimensional tables (Table 1, Table 2) define shank widths, lengths, hole sizes and allowed corner radii for compatible inserts.
  • Tolerances on key dimensions (h and f) are measured using master inserts and shims as defined.
• Designation and marking
  • Standardized designation format (e.g., Cartridge ISO 5611‑4 – STJCR 12CA – 16) encodes holding method, insert shape, style, clearance, hand, height and insert size.
  • Cartridges must be marked with manufacturer’s symbol and letter symbol; packaging must show the ISO 5611 general number.
• Material and construction
  • Minimum material requirement: steel with tensile strength ≥ 1 200 N/mm2.
  • Design options include adjustment screw for f‑direction positioning and variants of holding methods.
• Methods of holding
  • Screw clamping through hole (S), top clamping (C) and hole clamping (P) corresponding to insert normal clearances (α = 7°, 11°, 0° respectively).
• Delivery and accessories
  • Cartridges to be supplied complete with clamping devices and any adjusting screws.

Applications and users

• Practical uses: specifying, designing and selecting cartridges for internal turning tool assemblies in CNC lathes and boring machines.
• Typical users:
  • Tool manufacturers and designers (ensuring compatibility with indexable inserts)
  • Production engineers and machinists (tooling selection for internal turning)
  • Procurement and quality inspectors (verification, interchangeability and marking)
  • Technical authors writing tooling specifications and maintenance manuals

Related standards

• ISO 5611-1 - General survey, correlation and determination of dimensions
• ISO 5608 - Designation for turning and copying tool holders and cartridges
• ISO 1832 - Designation of indexable inserts

Keywords: ISO 5611-4:2015, cartridges type A, Style J, indexable inserts, internal turning, cutting tool cartridges, tool holder designation, cutting edge angle 93°.