China Jaw Crusher Parts Manufacturers

Products

Featured products

Contact us

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 eccentric Shafts

The eccentric shaft, a core component of jaw crushers, converts rotational motion into the swing jaw's reciprocation via its eccentric structure, comprising main/eccentric shaft necks, a shaft body, and transition fillets. Made of high-strength alloys (e.g., 40CrNiMo), it undergoes forging (or casting for small models), precision machining (grinding to IT6 tolerance), and heat treatment (quenching/tempering) for strength (tensile strength ≥800 MPa). Quality control includes material composition checks, UT/MT for internal/surface defects, and dynamic balance testing (residual unbalance ≤10 g·cm). With a 5–8 year service life, it ensures stable crusher operation under high loads.

More
jaw crusher side plate

The side plates are key load-bearing components in jaw crushers, connecting the front and rear walls to support the eccentric shaft bearings and withstand lateral forces. Constructed from ZG35CrMo/Q355D, they feature a plate body, bearing housing bores (coaxiality ≤0.05 mm), optional guide chutes, reinforcement ribs, and flange connections. Manufacturing involves cast steel casting (1500–1540°C pouring) with normalizing+tempering, followed by precision machining (Ra ≤1.6 μm for bearing bores) and surface coating. Quality control includes MT/UT for defects, hardness testing (220–260 HBW), and assembly trials ensuring ≤0.05 mm coaxiality. With a 5–8 year service life, they ensure stable crusher operation by maintaining structural rigidity and precise component alignment.

More
Jaw Crusher swing Jaw Plates

The swing jaw plate is a key wear-resistant component in jaw crushers, working with the fixed jaw plate to crush materials via reciprocal movement. Structurally, it includes a toothed working surface, mounting holes, and reinforcing edges, typically made of high manganese steel (ZGMn13) for toughness and wear resistance. Its manufacturing involves sand casting (1400–1450°C pouring) followed by water quenching to form an austenitic structure, with machining to ensure tooth precision and mounting accuracy. Quality control covers chemical composition, impact toughness, casting defects, and dimensional accuracy. With a 3–6 month service life, it ensures efficient crushing through its design and material properties.

More
jaw crusher V-Belt

V-belts, critical flexible drives in jaw crushers, transmit power between motor and eccentric shaft pulleys via friction, featuring shock absorption and overload protection. Composed of a tensile layer (polyester cords/aramid), top/bottom rubber (60–70 Shore A hardness), and a cover fabric, they adopt a trapezoidal cross-section (e.g., SPB type) for pulley groove compatibility. Manufacturing involves rubber mixing (120–150°C), belt blank winding, vulcanization (140–160°C, 1.5–2.5 MPa), and post-stretching. Quality control includes testing tensile strength (≥10 kN for SPB), friction coefficient (≥0.8), and dimensional accuracy (length deviation ±0.5%). With a 3000–5000-hour service life, they require proper tensioning and simultaneous replacement of belt sets to ensure stable crusher operation

More
Jaw Crusher Toggle Plates

**Abstract** The jaw crusher toggle plate (thrust plate) is a critical force-transmitting and overload protection component, typically made of gray cast iron (HT200/HT250) or malleable cast iron (KT350-10). Structurally, it consists of a body, support ends, reinforcing ribs (if applicable), and weakening grooves (for controlled fracture). Its manufacturing involves sand casting (with melting at 1380–1420°C, heat treatment for stress relief), machining (precision finishing of support ends and weakening grooves to ensure fit accuracy), and strict quality control (material composition checks, MT for cracks, dimensional inspections, and strength testing of weakening grooves). Functioning to transmit force and protect the crusher from overload by fracturing when overloaded, it ensures operational safety with a 3–6 month service life.

More
jaw crusher Hydraulic System

The hydraulic system in jaw crushers, critical for adjusting discharge gaps and overload protection, comprises power sources (hydraulic pumps, motors), actuators (adjustment/safety cylinders), control components (valves, pressure transducers), auxiliaries (pipes, filters), and L-HM 46# hydraulic oil, operating at 16–25 MPa. Core cylinder manufacturing involves precision boring (Ra≤0.8 μm), chrome-plated piston rods (50–55 HRC), and assembly with strict sealing. Quality control includes pressure testing (1.5× working pressure), oil cleanliness (≤NAS 7), and performance checks (overload relief in 0.5s). With MTBF ≥3000 hours under proper maintenance (oil replacement every 2000 hours), it ensures efficient, safe crusher operation via rapid response and stable pressure control.

More