Crusher Spare Parts

• What is the crusher hammer head?

  Mar 17, 2026

  When we talk about hammer crusher spare parts, the most critical component that comes to mind is the hammer head. It is the heart of any crushing operation—the part that actually does the breaking. Whether you are running a stone crusher in a quarry or recycling materials, understanding this simple yet vital piece can save you thousands in operating costs.   What Exactly Is a Crusher Hammer Head? A crusher hammer head is a wear-resistant component mounted on the rotor of a hammer crusher. As the rotor spins at high speed, the hammer head swings out and strikes the fed material—limestone, coal, gypsum, or demolition debris—breaking it into smaller pieces. Think of it as the “teeth” of the crusher; without it, no crushing happens.How Does It Work?The working principle is simple but powerful: Impact: The hammer head hits the incoming material with tremendous force. Crushing: The material is shattered against the breaker plates or other rocks inside the crushing chamber. Discharge: Once the pieces are small enough, they pass through the grate bars at the bottom. Because the hammer head takes the brunt of the impact, it is classified as a wear part—it will eventually wear out and need replacement. That’s why choosing the right crusher parts is essential for maintaining production efficiency. Common Materials for Hammer Heads Not all hammer heads are created equal. Depending on what you are crushing, the metallurgy should change. Here are the three most common types used in stone crusher applications: High Manganese Steel: Excellent toughness; work-hardens under impact. Common grades include Mn13Cr2, Mn18Cr2, and Mn22Cr2 – with higher manganese content providing greater work-hardening capacity for severe impact conditions. Ideal for large, hard rocks like granite. High Chrome Iron: Extremely hard and wear-resistant; lasts 3–4 times longer in abrasive conditions (e.g., silica-rich materials). However, it is more brittle. Bi-Metal Composite: Combines a tough steel shank with a wear-resistant alloy head—offering both safety for the rotor and long wear life. When Should You Replace Them? Even the best hammer heads wear down over time. Running a worn hammer too long leads to: Reduced crushing efficiency Higher energy consumption Risk of damaging the rotor (which is 10x more expensive to repair) This is where having a new vs. worn comparison becomes valuable. Look at the image below: the hammer on the left is new, with a full profile. The one on the right is heavily worn and must be replaced immediately.Simple Maintenance Tips to Extend Life Rotate Regularly: Wear is uneven. By flipping or swapping positions, you can use the full mass of the hammer and increase service life by up to 50%. Check for Cracks: A cracked hammer can break apart and damage the crusher. Inspect them weekly. Remove Tramp Metal: Install a magnetic separator. One stray piece of steel can destroy an entire set of hammers.   Why the Right Hammer Head Matters As a hammer crusher spare part, the hammer head directly affects your bottom line. The initial purchase price is only part of the equation—what really counts is cost per ton crushed. A hammer that lasts twice as long, even if it costs a bit more, almost always delivers better ROI.Whether you are a purchasing manager looking for the best value or a maintenance engineer trying to keep the plant running, understanding the basics of hammer heads helps you make smarter decisions.   Need Help Choosing? Every stone crusher and material is unique. If you’re unsure which hammer head suits your operation, send us your details (rock type, crusher model, current wear life). We’ll help you find the perfect match—and keep your crusher running at its best.All names, marks, models, symbols and descriptions are used for reference purposes only and it is not impied that any of the parts/brands listed are the product of any company other than ONA. We are not agents or distributors for any of the above mentioned brands nor do we have any commercial relationship or association with them.

  Hot Tags : hammer head crusher hammer head hammer crusher hammer crusher spare parts hammer crusher parts Crusher Spare Parts

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• Are Your Cone Crusher Gears Noisy and Short-Lived?

  Oct 01, 2026

  Your cone crusher gears are getting louder and wearing out faster. Don’t replace them yet—check the meshing first. Loud noise usually means the large gear and pinion are not properly engaged. When noise drops, transmission becomes stable and gear life extends. How does ONA solve this with meshing tests, custom manufacturing, and strict material control? Why Gear Meshing Matters Cone crushers commonly use a large gear and pinion (bevel gears), not only suitable for Metso HP series but also suitable for Omnicone, Symons, MP, GP, and Sandvik CH/H models. Poor meshing causes: 1. Loud noise 2. High temperature 3. Rapid wear 4. Frequent downtime Noise is the most direct signal of meshing quality. The fit among eccentric sleeve, main shaft, and main frame directly affects meshing. Adjustment differs by model: 1. For Omnicones: push the eccentric sleeve toward the pinion. 2. For HP crushers: push the thick side of the eccentric sleeve toward the main shaft. ONA understands both gears and assembly logic—the basis for manufacturing to drawings.   Straight Bevel vs Spiral Bevel Gears Cone crushers mainly use straight bevel gears and spiral bevel gears. Intersecting-axis bevel gears achieve transmission efficiency of 98.0–99.0%. Straight bevel gears are simple with low axial force but noisier. Spiral bevel gears have higher contact ratio, smoother transmission, and lower noise—ideal for high-speed, heavy-load conditions. Choosing the right type is the first step to reducing noise. Straight Bevel Gears Spiral Bevel Gears Straight Bevel vs Spiral Bevel Gears ONA can produce both types to drawings and perform meshing tests. Noise level is verified after assembly. ONA’s Core Process: Listening to Noise ONA's meshing test logic is simple: loud noise means poor meshing; low noise means good meshing. This is based on repeated tests, not guesswork. A customer reported increasing noise and higher temperature. ONA engineers found poor meshing on the old gear. After replacing it with an ONA gear made to drawings and readjusting the eccentric sleeve and meshing clearance, noise dropped significantly and operation became stable. The before-and-after difference is clear.At no load, the meshing rate between gear and pinion is about 60%. Too low causes noise and wear; too high may cause rapid temperature rise. ONA does not deliver "close enough"—we confirm proper meshing by test. Low noise is not luck; it comes from material, cutting, grinding, and meshing tests. We retain meshing test traces for traceability. Gear Meshing Test ONA Gear Production ONA Spiral Bevel Gears Custom Manufacturing and Material Selection   ONA manufactures large gears and pinions to customer drawings or samples, with dimensions strictly meeting drawing requirements. Both straight and spiral bevel gears can be custom-made. We offer both standard materials and custom options to suit different working conditions. Whether you need standard production or full customization, ONA has the manufacturing capability to deliver. Please refer to the table below for detailed specifications. For specific advice, send us your drawings and operating conditions, and we will recommend the most suitable solution. Material Hardness TreatmentMethod No-load Matching Rate Gear Cutting Gear Grinding C Si Mn Cr Mo P/S Ni Cu 20CrMnMo HRC58-62 Carburizing and annealing About 60% / / 0.17 ～ 0.23 0.17 ～ 0.37 0.90 ～ 1.20 1.10 ～ 1.40 0.20 ～ 0.30 ≤ 0.030 17CrNiMo6 As required Case Hardening with Carburizing / Bevel Generators Profile Grinding Machine 0.15 ～ 0.20 ≤ 0.40 0.40 ～ 0.60 1.50 ～ 1.80 0.25 ～ 0.35 ≤ 0.035 1.40 ～ 1.70 / Conclusion: Quality You Can Trace From suitable for Metso HP to suitable for Omnicone, Symons, MP, GP, and Sandvik CH/H, ONA covers gears for many cone crusher series. Whether straight or spiral bevel, we produce to drawings, perform meshing tests, retain test traces, and provide full inspection reports. Low noise, good meshing, and long life are our basic requirements for every gear set. If you are struggling with noisy, short-lived cone crusher gears, send us your drawings or part numbers. ONA helps you solve the problem from the meshing up. Brand Part Number Machine Type Suit to Metso ONA-1036831560-LOC, ONA-1036831570, ONA-N35410855-LOC, ONA-N35410850-LOC, ONA-949618831627, ONA-949638682930, ONA-MM0218088, ONA-N35410851, ONA-N98000468, ONA-N98001158, ONA-N98000803, ONA-N98000802, ONA-1062440044, ONA-1036831535-LOC, ONA-1036831535, ONA-1036831535-IMP, ONA-1093055002, ONA-949618601658, ONA-1062440048, ONA-1036803301-LOC, ONA-1036803301-IMP, ONA-1093045000, ONA-949690808328, ONA-N98000046, ONA-N98000030, ONA-N98000031, ONA-N35410802-LOC, ONA-N35410803, ONA-N98000050, ONA-949620306545, ONA-MM0352131, ONA-17-302-958-001, ONA-1062440045, ONA-7057500007, ONA-1036833869-LOC, ONA-1036833869-IMP, ONA-1036833869, ONA-7090228208, ONA-17-303-008-001, ONA-N35410853-LOC, ONA-7005630051, ONA-1036829652-LOC, ONA-1036829652-IMP, ONA-1036829652, ONA-1062440046, ONA-7090228204, ONA-SN204302, ONA-SN787823, ONA-MM0529214, ONA-07-248-793-001, ONA-7035410600, ONA-N90408006, ONA-17-502-308-003 HP100, HP200, HP300, HP400, HP500, HP700, HP800, HP3, HP4, HP6, GP100, GP200, GP300, GP550, GP11F, G11FINE, MP800, SG4265, SG6089, SG60110, LT120 Suit to Sandvik ONA-442.9639, ONA-442.3055, ONA-442.3085, ONA-442.8723, ONA-442.7093, ONA-442.7802, ONA-442.6127, ONA-442.9452, ONA-442.933, ONA-442.9275-01, ONA-442.8723-01, ONA-442.9330-00, ONA-442.9330-01, ONA-442.9532-00, ONA-442.9452-00, ONA-442.9468-00, ONA-442.9535-00, ONA-442.9533-00, ONA-442.9803-01, ONA-442.9311-00, ONA-442.9802-02, ONA-442.7096-05, ONA-442.7802-00, ONA-BG00516535 CH420, CH430, CH440, CH660, CH780, CH870, CH880, H2800, H2800/S2800/Klingelnberg, H2800/S2800/Gleason, H3800, H3800S3800, S3800/H3800/Klingelnberg, S3800/H3800/Gleason, H4800, H4800/S4800/Klingelnberg, H4800/S4800/Gleason, H6800, H6800/Gleason, H6800/Klingelnberg, H8800 Suit to Symons ONA-1036832376, ONA-1036808751, ONA-1036832377, ONA-1036809452, ONA-1036805608, ONA-1036829752, ONA-1036830807, ONA-CB-B125, ONA-3680 8753, ONA-3680 5608 3ft, SY3ST, SY3SH, 4-1/4FT, 4.25FT, SY41/4ST, SY51/2SH Suit to Terex ONA-302/15 TC 1000 Suit to KMD ONA-1275.02.314-1, ONA-1275.03.311 KMD-2200 All names, marks, models, symbols and descriptions are used for reference purposes only and it is not impied that any of the parts/brands listed are the product of any company other than ONA. We are not agents or distributors for any of the above mentioned brands nor do we have any commercial relationship or association with them.    

  Hot Tags : Cone Crusher Parts Crusher Spare Parts Cone Crusher Gear Gear Meshing Test Gear and Pinion Quarry Equipment Gears

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