JIS F 2002 Cast Iron Dog Type Chain Cable Compressor Ship Mooring Equipment

Product Specification

Bolted Cast Iron Dog Type Chain Cable Compressor | JIS F 2002 Ship Anchor Chain Stopper

Product Overview

The JIS F 2002 dog type chain cable compressor is a foundation-bolted anchor chain securing device. A cast iron body forms the chain track, while the hinged dog closes across the chain and is retained by a locking pin. The bolted mounting arrangement is useful where the vessel design requires a removable unit for installation, inspection, or replacement rather than a permanently welded chain stopper.

The supplied range covers nominal sizes 19 to 68 for anchor chain diameters 17 to 68 mm, with Class A and Class B track arrangements. JIS F 2002:1976 is a withdrawn legacy standard, so it should be specified for repair, replacement, or projects that explicitly retain this design. The final class, type, material, foundation bolt pattern, chain load basis, and acceptance scope should be confirmed against the vessel drawing and project requirements.

Quick Specifications

• Installation: Bolted to the prepared foundation → supports removable installation and replacement without welding the compressor body directly to the deck foundation.
• Standard and status: JIS F 2002:1976, dog type chain cable compressor → a legacy / withdrawn standard that requires project-specific acceptance confirmation.
• Nominal size range: 19 to 68 → corresponds to applicable anchor chain diameters from 17 to 68 mm in the supplied table.
• Class arrangement: Class A guides joining or Kenter shackles horizontally; Class B permits Kenter shackles to pass vertically in the track groove.
• Standard body material: JIS G 5501 FC25 gray cast iron or equivalent → the supplied standard material table does not support calling the standard body ductile cast iron.
• Operating parts: Dog, hinge pin, and locking pin are associated with JIS G 4051 S25C or equivalent in the supplied material information; final grouping should be checked against the official drawing.
• Calculated weight: 22 to 737 kg → important for foundation design coordination, handling, packing, and onboard installation planning.
• Surface protection: Sa 2.5 blast cleaning plus epoxy shop primer can be used as a reference; galvanizing, polishing, or alternative finishes require material and process confirmation.

Main Technical Parameters

Selection & Inquiry Guide

Step 1: Confirm that the project specifically requires the JIS F 2002 bolted dog type chain cable compressor, and state Class A or B, Type a or b, and nominal size 19 to 68.

Step 2: Provide anchor chain diameter, chain grade if known, joining shackle / Kenter shackle details, and the required shackle orientation through the track.

Step 3: Provide the approved foundation or installation drawing showing bolt-hole pattern, bolt specification, foundation plate, local reinforcement, chain centerline, and available operating clearance.

Step 4: Confirm the material basis. FC25 gray cast iron is the standard body reference in the supplied parts table; nodular cast iron, cast steel, stainless steel, or fabricated steel should be treated as project-specific alternatives subject to approval.

Step 5: Confirm surface treatment, inspection scope, material traceability, maker certificate, class involvement, and whether any witness inspection or project-specific testing is required.

Step 6: Provide quantity, vessel type, newbuilding or replacement purpose, installation position, delivery destination, and required delivery time; include existing equipment photos for replacement orders.

Structure

Cast iron body and chain track | Hinged dog | Hinge pin | Locking pin | Washer | Split pin | Bolted foundation interface | Project-specified protective coating

Anchor Chain Securing & Installation Advantages

• Bolted foundation mounting allows the complete compressor to be removed for replacement or workshop maintenance, provided that the original foundation and bolt pattern are verified.
• The hinged dog provides direct mechanical restraint across the chain track, while the locking pin retains the dog in the closed position during the securing condition.
• Class A and Class B track arrangements address different joining-shackle or Kenter-shackle orientations, which helps avoid ordering a groove configuration that cannot pass the vessel’s chain connection.
• The chain-contact track, dog edges, and pin interfaces should be free from harmful burrs and sharp local edges that could damage the anchor chain or prevent correct closing.
• Casting quality, dimensional control, pin fit, dog movement, and locking-pin engagement are more relevant than unsupported marketing claims for this legacy cast iron design.
• The foundation, bolts, deck structure, and local reinforcement form part of the load-transfer path and should be checked by the shipyard or vessel design office.
• No SWL, proof load, breaking load, or test load was included in the supplied data; these values must not be inferred from nominal chain size or product weight.

Custom Attributes

• Standard: JIS F 2002:1976 → legacy / withdrawn standard; use only when required by the vessel or replacement drawing
• Product Type: Dog type chain cable compressor / anchor chain stopper → foundation-mounted device for locally securing the anchor chain
• Installation: Bolted type → foundation bolt layout and structural support must be confirmed before manufacture
• Nominal Size: 19 / 22 / 25 / 28 / 32 / 36 / 40 / 44 / 48 / 52 / 56 / 60 / 64 / 68 → select according to chain diameter and approved vessel drawing
• Class: A or B → select according to the required shackle posture in the chain track
• Type: a or b → exact structural difference and dimensions should be confirmed from the official standard drawing
• Body Material: JIS G 5501 FC25 gray cast iron or equivalent → alternative materials are customized and may no longer be a standard-conforming JIS F 2002 product
• Surface Treatment: Sa 2.5 blasting + epoxy shop primer as reference → final coating follows project specification and material suitability
• Load Rating: To be confirmed → no SWL, test load, or breaking load is provided in the supplied table
• Certificate Requirement: According to project requirement → maker, material, or class documents are subject to the agreed inspection scope

How It Works

Anchor chain is aligned in the track → The hinged dog is rotated into the closed position across the chain → The locking pin and split pin retain the closed assembly → Chain movement is mechanically restrained after tension is safely controlled → The retaining parts are released and the dog is opened before chain handling resumes

Applications

Small vessels | Inland waterway vessels | Legacy JIS-specified anchor chain systems | Repair and replacement projects | Foundation-bolted deck arrangements | New equipment only when the project specification explicitly accepts JIS F 2002

Certifications & Advantages

Certificates and inspection documents can be arranged according to project requirement, agreed material traceability, inspection scope, and classification society approval procedure. They are not automatically included unless stated in the purchase order.

Certification: CCS, NK, BV, ABS, DNV, LR, KR, IRS, RS, RINA, CRS, Makers Test Certificate.

Drawing & Photos

FAQ

Q1: Is JIS F 2002:1976 still a current JIS standard?

A1: No. Public bibliographic and standard-index records identify JIS F 2002:1976 as a withdrawn / abolished standard. It can still be relevant for replacement or legacy vessel drawings, but the shipyard, owner, and classification society should confirm whether it is acceptable for the project.

Q2: How are Class A and Class B selected?

A2: Select the class according to the required posture of the joining or Kenter shackle in the chain track. The supplied data indicates horizontal passage for Class A and vertical Kenter-shackle passage for Class B. Type a or b should be confirmed from the official drawing and the vessel arrangement.

Q3: What information is required before quotation?

A3: Confirm standard, class, type, nominal size, chain diameter, shackle details, material, coating, quantity, certificate scope, and delivery. Provide the foundation drawing with bolt pattern and structural support.