China Jaw Crusher Parts Manufacturers

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Address

No.19-1 9A 204, Econmic and Technology Development Area, Shenyang,China.

Email

slm@chinaslm.net

Phone

+8615840301386

Fax

+86-24-31123242

Jaw Crusher teeth plate

The jaw crusher teeth plate, a key wear component on fixed and movable jaws, crushes materials via compression/shear, guides flow, resists wear, and protects jaw bodies under 300 MPa stress. Structurally, it includes a 50–200 mm thick plate (Cr15–20, ZGMn13, or HT350) with 20–50 mm high teeth (30–80 mm spacing), back surface mounting features (T-slots, bolts), and reinforcement ribs. Manufactured via sand casting, high-chromium iron (1400–1450°C pouring) undergoes annealing/aging for HRC 55–65; ZGMn13 (1500–1550°C pouring) is water-quenched for work hardening. Machining refines mounts, with optional tooth polishing. Quality control includes composition checks, hardness testing, CMM dimensional inspection, UT/MPT for defects, ASTM G65 abrasion tests (≤0.8 g loss/1000 cycles), and field trials (500–2000 hours service life). It balances wear resistance and toughness for mining/construction applications

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Jaw Crusher rear wall

The rear wall, a key load-bearing component in jaw crushers, supports the toggle plate seat and withstands impact forces from the swing jaw via the toggle plate. Constructed from ZG35SiMn/Q355D, it comprises a main wall plate, toggle seat mounting features (recess/boss with bolt arrays), reinforcement ribs, and auxiliary structures (inspection holes, lifting lugs). Manufacturing involves cast steel casting (1500–1540°C pouring) with normalizing+tempering, followed by precision machining (toggle seat flatness ≤0.08 mm/m) and surface coating. Quality control includes MT/UT for defects, mechanical testing (tensile strength ≥550 MPa), and static load trials (1.5× rated load, deformation ≤0.1 mm/m). With a 4–6 year service life, it ensures stable force transmission and crusher rigidity through robust design and strict process control.

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Jaw Crusher Front wall

The front wall is a key component of jaw crushers' crushing chambers, supporting the fixed jaw plate and withstanding initial material impact. It consists of a main plate (ZG30Mn/Q355B), fixed jaw mounting structures (T-slots/bolts), connecting flanges, and reinforcement ribs, with optional wear liners and leakage-prevention lips. Manufacturing involves cast steel casting (1460–1500°C pouring) with stress-relief annealing, followed by precision machining (flatness ≤0.1 mm/m for mounting surfaces) and surface coating. Quality control includes MT/UT for defects, hardness testing (≥200 HBW), and load trials (1.2× rated force) to ensure ≤0.2 mm deformation. With a 3–5 year service life, it ensures stable crushing via structural rigidity and precise assembly, critical for feeding efficiency and material containment.

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Jaw Crusher Frames

The frame, a core load-bearing component of jaw crushers, supports key parts like the fixed jaw plate and eccentric shaft, enduring all crushing forces. It features an integral (small/medium crushers) or split (large models) structure with bearing bores, a fixed jaw mounting surface, toggle plate seat mounts, and reinforcing ribs, made of ZG270-500 cast steel or QT500-7. Manufacturing involves sand casting (1480–1520°C pouring) with stress-relief annealing, followed by precision machining (bearing bore tolerance H7, flatness ≤0.1 mm/m). Quality control includes UT/MT for defects, tensile testing (≥500 MPa), and load trials ensuring ≤0.2 mm/m deformation under 1.2× rated load. Critical for structural rigidity, it ensures stable crusher operation with long-term durability.

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Jaw Crusher Toggle Plate Seats

The toggle plate seat is a key load-bearing component in jaw crushers, supporting the toggle plate at the frame’s rear wall and swing jaw’s lower part to transmit crushing forces and enable the swing jaw’s oscillation. It comprises a high-strength base body (ZG35CrMo/HT350), a contact surface (spherical concave or flat groove) matching the toggle plate, and fixing structures (bolts, locating pins) with reinforcing ribs for rigidity. Manufacturing involves resin sand casting (1480–1520°C pouring) followed by stress-relief annealing, with precision machining of the contact surface (flatness ≤0.1 mm/100 mm) and assembly holes. Quality control includes MT/UT for defects, hardness testing (≥200 HBW), and load trials to ensure ≤0.1 mm deformation under 1.2× rated load. With a 2–3 year service life, it ensures stable force transmission and equipment safety through strict process control.

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Jaw Crusher Bearings

Bearings are core components in jaw crushers, facilitating rotational motion and load-bearing at connections between the eccentric shaft, swing jaw, and frame. Typically spherical roller bearings, they consist of inner/outer rings (GCr15 steel), spherical rollers, cages (brass/stamped steel), and seals (IP54+), designed to withstand radial/axial loads and accommodate angular misalignment. Manufacturing involves forging, spheroidizing annealing, precision grinding, and heat treatment (61–65 HRC for rings). Quality control includes chemical analysis, dimensional checks (tolerances ≤0.005 mm), hardness testing, and MT/UT for defects. With a 8000–12000 hour service life, they ensure efficient crusher operation through high precision and durability, dependent on proper lubrication and maintenance.

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