Sandvik J4700000 Fixed Jaw Plate — HD Corrugated | Extec C12 / C12+ | QJ340 / QJ341

The Sandvik J4700000 is the OEM-specification Heavy Duty (HD) Corrugated Fixed (Stationary) Jaw Plate engineered for the Extec C12, Extec C12+, Sandvik QJ340, and Sandvik QJ341 tracked mobile jaw crushers — one of the world’s best-selling lines of tracked jaw crushers, with the QJ341 featuring a 1,200 × 750 mm (47 × 29 in.) jaw opening built to tackle the most difficult applications with ease. SRP

Part number J4700000 is verified as the Fixed Jaw Plate in HD Corrugated profile, cast from Manganese 18% / Chrome 2% alloy, to suit the Extec C12 / C12+ and Sandvik QJ340–QJ341 jaw crusher. Crusher Spares Ltd Also referenced in the market as J47HDE (the Heavy Duty Extended tooth variant), the J4700000 plate is the primary stationary crushing surface of the jaw box — the fixed face against which the swing jaw compresses material during each crushing cycle.

In Heavy Duty configuration, the fixed jaw plate weighs approximately 1,259 kg and is cast from 18%Mn2%Cr alloy ELGO-PLUS — the industry-standard manganese chromium composition that combines the work-hardening characteristics of high-manganese steel with the improved abrasion resistance that chromium additions provide. Under the sustained compressive and impact loading of primary crushing, the 18%Mn2%Cr alloy progressively work-hardens at the surface, developing a hardened wear layer that extends service life in demanding quarrying, mining, demolition, and recycling applications.

Key Features

• OEM Part Number: J4700000 — also referenced as J470, J47, J47HDE (HD tooth variant); all covering the same fixed jaw plate position
• Jaw Plate Type: Fixed (Stationary) Jaw Plate — the non-moving crushing face of the jaw box assembly
• Pattern: Heavy Duty (HD) Corrugated — a robust, large-tooth corrugated profile designed for high-impact primary crushing with strong gripping of large, blocky feed material
• Alloy: 18% Manganese / 2% Chrome (18%Mn2%Cr) — work-hardening manganese steel with chromium for enhanced abrasion resistance
• Approx. Weight: 1,259 kg — a large-format, heavyweight wear part matched to the QJ341’s 1,200 × 750 mm jaw
• Confirmed Compatibility: Extec C12 · Extec C12+ · Sandvik QJ340 · Sandvik QJ341 — the complete C12 platform lineage
• Direct Drop-In Fit: Manufactured to original J4700000 dimensional and mounting specification — installs directly into the crusher’s fixed jaw seat without modification
• Reversible Design: The jaw plate can be rotated 180° to utilise both wear faces, maximising total wear life and reducing cost per tonne of material crushed
• Precision Cast Construction: Fine sand casting process for smooth, accurate surface finish and consistent dimensional tolerance

Specifications

Related Jaw Plate & Wear Parts for Extec C12 / Sandvik QJ340–QJ341

About the Extec C12 / Sandvik QJ340–QJ341 Crusher Platform

The Sandvik QJ341 is the flagship of the range and one of the world’s best-selling tracked jaw crushers. Formerly known as the Extec C-12 and C-12+, and later the QJ340, it is consistently chosen by operators seeking high performance, reliability, and low total cost across quarrying, hard rock mining, demolition, and recycling applications. SRP The QJ341 is equipped with a C12 jaw crusher, a powerful and fuel-efficient engine, with a maximum feed size of 650 mm (26 in.) and a 1,200 × 750 mm jaw opening. Crusher Works

The J4700000 fixed jaw plate is one of the highest-wear, highest-turnover spare parts on this crusher platform. The fixed jaw takes the full compressive load of every crushing cycle across the entire service life of the jaw plates — meaning correct alloy selection and weight class directly determine throughput efficiency, reduction ratio consistency, and total cost of ownership. The HD Corrugated pattern of the J4700000 is specifically engineered to handle the large, blocky, irregular feed material typical of primary quarry blasting output and demolition waste, providing the gripping geometry needed to draw oversized material into the crushing zone efficiently.

Order the Sandvik J4700000 Fixed Jaw Plate today and restore full primary crushing performance to your Extec C12, Sandvik QJ340, or Sandvik QJ341 jaw crusher.