Explore our high-performance secondary crushing, sizing, and milling solutions utilized in key industrial applications globally.
A rigorous industrial critique of high-efficiency reduction technologies in modern mining and metallurgy.
The PEX Series Secondary Stone Jaw Crusher represents a core milestone in mechanical size reduction. Unlike primary PE series units designed for heavy, high-volume block fracturing, the PEX configuration focuses on delivering a precise secondary aggregate size with narrow gradation profiles. The mechanical architecture incorporates a shorter eccentric throw coupled with a wider, shallower crushing cavity configuration. This design allows material to remain in the compression zone longer, increasing the probability of inter-particle attrition, which in turn optimizes cubical shape indices.
By regulating the movement of the swing jaw via the tension rod and toggle plate assembly, the PEX jaw crusher produces a crushing motion characterized by both downward and forward compression. This elliptical motion path ensures that hard materials like granite, basalt, and river stone are shattered along natural cleavage planes, reducing energy consumption and minimizing dust production compared to impact or cone crushers in similar stages.
Reliability under stress is the core factor of E-E-A-T guidelines for mining equipment. Ascend’s PEX series utilizes a modular, non-welded frame construction option alongside standard heavy-cast alloy frames. By subjecting the frame design to Finite Element Analysis (FEA), our design engineers identify potential stress concentration points. The swing jaw assembly is cast from premium structural steel, while the eccentric shaft is forged from high-tensile 42CrMo alloy, heat-treated to ensure maximum fatigue strength under cyclic shock loading.
| Model Name | Feed Opening (mm) | Max Feed Size (mm) | Discharge Range (mm) | Capacity Range (t/h) | Motor Power (kW) |
|---|---|---|---|---|---|
| PEX-150 x 250 | 150 x 250 | 125 | 10 - 40 | 1 - 3 | 5.5 |
| PEX-250 x 750 | 250 x 750 | 210 | 25 - 60 | 15 - 30 | 22 |
| PEX-250 x 1000 | 250 x 1000 | 210 | 25 - 60 | 16 - 52 | 30 - 37 |
| PEX-250 x 1200 | 250 x 1200 | 210 | 25 - 60 | 20 - 61 | 37 - 45 |
| PEX-300 x 1300 | 300 x 1300 | 250 | 20 - 90 | 16 - 105 | 55 - 75 |
Deploying reliable mechanical power across infrastructure, recycling, and metallurgy sectors globally.
Rapid industrialization across Southeast Asia, Sub-Saharan Africa, and Latin America requires a continuous supply of high-grade aggregates. Rapid urbanization relies on high-quality sand and concrete structures, driving up the need for durable crushers. The PEX series jaw crusher serves as the workhorse for mid-size processing plants, bridging the gap between primary jaw crushing and tertiary grinding circuits.
By sizing primary ores to under 40mm, these units optimize the grinding efficiency of secondary ball mills or vertical roller mills in cement and gold processing lines. Without efficient secondary reduction, downstream processing systems consume excessive power and experience accelerated component wear.
Henan Ascend Machinery & Equipment Co.,Ltd. has developed steadily since its establishment. Its business covers more than 130 countries and regions around the world, especially in Africa and Southeast Asia. Ascend machine quality and after-sales service have won widespread praise from international customers.
High-efficiency processing circuits engineered to extract high yields from hard quartz formations. Tailored for mines in Africa and Southeast Asia.
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Heavy duty systems designed for crushing granite, limestone, and basalt under continuous operating profiles.
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Integrated material sizing setups featuring optimized vibrating screens and secondary jaw units.
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Reliable secondary crushing assemblies configured for small to medium scale mining operators.
Learn More →Engineered to operate reliably under extreme loads and remote quarry conditions.
Impact crusher is a kind of secondary crushing equipment which uses impact power to crush materials. Characterized by easy maintenance, high reduction ratios and high efficiency to produce precisely cubic shape products. Designed with three crushing chambers, seamlessly connected rotor, wear-resistant blow bar and installation of insert type. Moreover, it has tooth type liner, gradient designed bearing seat, frame with several openings and screws or hydraulic start-up devices.
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Our mobile units consolidate feeders, screens, and secondary crushers onto a single heavy-duty chassis, providing flexible mobility for rapid relocation across mining and infrastructure projects.
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Engineered for high fineness grinding requirements. Processes hard minerals into industrial-grade powder with minimal power consumption and precise control over the output distribution.
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Complete mechanical circuits including mills, concentrators, and furnaces. Maximizes recovery rates and processes complex gold ores under remote operating conditions.
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From spiral classifiers to gravity separation shaking tables. Delivers clean mineral separation, low operational overheads, and high throughput capacities.
Read More →Demonstrated processing performance across key mines, quarries, and recycling sites around the globe.
Deploying PEX secondary crushers in limestone processing setups to produce consistent road building materials.
Reducing iron ore matrices down to sizing suitable for tertiary grinding mills.
Configuring mobile units with high-performance screens to handle basalt in remote locations.
Optimizing throughput yields ahead of gravity-based centrifugal concentrator units.
Heavy duty PEX jaw crushers deployed to handle tough granite feed stocks with minimal machine down-time.
Recycling demolition materials to produce standardized recycled concrete aggregates (RCA).
Providing long-term operational security and technological adaptation in the crushing industry.
To maintain export eligibility and deliver verified engineering standards, Ascend's manufacturing plants operate under certified ISO 9001:2015 Quality Management Systems. Our PEX jaw crushers bear full CE marks, complying with European safety requirements, alongside Eurasian Conformity (EAC) validation for Eastern European markets. Sound insulation hoods, dust suppression sprayers, and dynamic balance flywheel profiles ensure that local environmental emission standards (including dust particles and decibel levels) are met in all operating regions.
As mining operations shift toward automated tracking systems, Ascend's technical roadmap outlines the integration of diagnostic sensors within the PEX crusher assemblies:
Expert answers addressing the practical operation and servicing of PEX jaw crushers.
Real-time updates on our recent equipment deliveries, commissioning, and mining field deployments.
Nov 2025
Our engineering team successfully completed testing and dispatched diesel-driven jaw units configured for remote gold quarries in PNG.
Aug 2025
Designed for local artisanal miners, these packages optimize gold concentration recovery from small-scale feed materials.
Established in 2005, Henan Ascend Machinery & Equipment Co.,Ltd. is located in the high-tech zone of Zhengzhou City, Henan Province. For two decades, we have committed ourselves to engineering, manufacturing, and supporting premium industrial crushers, grinding systems, and beneficiation plants.
Ascend is mainly engaged in the research and development, manufacturing, sales and after-sales service of complete sets of crushing, grinding, screening, feeding and conveying heavy mining machinery. If you need to crush limestone, granite, gravel or other stone, or grinding them into powder, or extract gold, please feel free to contact us. Just tell us your needs and our engineers can provide you with professional advice. We operate our own manufacturing facilities, ensuring guaranteed machine quality and competitive factory-direct pricing.
High-reliability components and complete systems built to optimize material recovery rates.
Ascend