Cone Crusher Main Frame

Customized Cast & Machined Cone Crusher Main Frames – Carbon / Low-Alloy Steel Primary Structural Bases for Crushing Equipment

At Y&J Industries, we deliver precisionengineered components that power the mining, crushing, and mineral processing industries worldwide. Our portfolio is designed to withstand extreme mechanical stresses, abrasive environments, and heavy dynamic loads, ensuring reliable performance and reduced downtime. Within our customized Mining Machinery parts portfolio, the cone crusher main frame (base frame) is the primary structural skeleton that houses and supports all internal mechanisms — transmission, eccentric, crushing, and adjustment assemblies — and securely transfers the immense operational loads to the concrete foundation. Every main frame is fully customized – cast from carbon steel or low-alloy steel, precision-machined on large-format CNC centers, and finished exactly to your engineering drawings or physical samples. You define the geometry, bearing seats, and material grade; we focus on precision manufacturing and can provide targeted Design for Manufacturability (DFM) feedback to ensure a reliable, long-service-life product.

Sand Casting & CNC Machining – Made Exclusively to Your Drawings or Samples

All cone crusher main frames we produce are manufactured through high-integrity sand casting followed by comprehensive CNC machining. Sand casting enables the production of the massive, thick-walled monoblock structure with complex internal ribbing and oil passages, while precision machining ensures that all critical bores, seats, and mounting faces meet exact dimensional and geometric tolerances. Y&J Industries is a Chinese manufacturer specializing in customized mechanical components through integrated casting, forging, and machining. For main frames, casting and machining is the established production route.

Simply provide your complete engineering definition: 2D drawings (PDF, DWG), 3D models (STEP, IGES), or a physical sample, along with your material grade (carbon steel or low-alloy steel), heat treatment requirements, and any non-destructive testing (NDT) criteria. We faithfully reproduce your frame with strict dimensional control and full material traceability. We do not offer frame design services; however, upon request we can review your design from a DFM standpoint, offering localized suggestions on casting draft, core layout for internal galleries, or machining allowances to improve producibility and structural integrity – without altering your functional intent. Minimum order quantity is not fixed; it is assessed case by case based on material, process complexity, and frame dimensions. We adapt to your batch size.

Monoblock High-Toughness Construction with Precision Geometric Tolerances

Your design benefits from a manufacturing approach that delivers both structural resilience and machining accuracy:

Monoblock High-Toughness Structure: The frame is typically cast as a single heavy steel piece (or fabricated from thick plates if your design specifies), then subjected to full annealing to eliminate residual stresses. This process ensures the frame remains distortionfree and crackresistant even under the ultimate shock loads and continuous vibration of primary crushing operations.

Precision Machined Seating Surfaces: The internal bores for the main shaft bearing, eccentric bushing, and countershaft housing are machined on large CNC horizontal boring mills to exact geometric tolerances. This guarantees perfect mechanical alignment and oil film formation, reducing wear on rotating parts and extending the service life of the entire crusher.

Engineered as the Primary Load-Bearing Skeleton

The main frame is the backbone of the cone crusher. It absorbs and distributes all forces generated during crushing — from the gyratory action of the head to the heavy counterforces from the adjustment ring and bowl assembly. By faithfully manufacturing your frame design, we ensure:

Safe load transfer: The heavy section and rigid construction transmit crushing loads efficiently into the concrete foundation or base platform, preventing deformation and maintaining the relative positions of all mounted assemblies.

Long-term alignment stability: Precision boring and stress relief guarantee that bearing centers and shaft positions remain true over years of operation, protecting the drive train from misalignment-related failures.

Integration with your full crusher: Mounting pads, bolt patterns, and dowel locations are machined exactly to your drawings, ensuring the frame mates perfectly with your adjustment ring, countershaft box, and tramp release system.

Why Y&J Industries for Your Customized Cone Crusher Main Frames?

True build-to-print manufacturing – Each frame is cast, heat-treated, machined, and inspected precisely to your approved engineering data.

Heavy-section casting expertise – We produce sound, fully annealed castings with the toughness required to survive extreme impact and fatigue.

Large-format CNC machining capability – We hold tight geometric tolerances on critical bores and faces, ensuring perfect alignment of internal assemblies.

DFM partnership without design interference – We respect your engineering authority while providing casting and machining insights when requested.

No fixed MOQ – Whether a single replacement frame or a multi-unit order, we adapt to your requirements.

Global supply – We serve mining operators, crusher OEMs, and mineral processing plants in over forty countries.

Documented quality – Dimensional inspection reports, material certificates, heat treatment records, and NDT reports supplied per your acceptance criteria.

Ready to place your cone crusher main frame design into production? Contact our sales team with your drawings, material specifications, and estimated quantity. Email sales@ynj-industries.com or visit www.ynj-industries.com to request a quotation. We will respond with a feasibility review and detailed pricing.