Symmetrical Mn18Cr2 jaw plate 814320042600 with orange protective coating and 10-ridge profile
- As Fixed Jaw Plate: Install with ridges perpendicular to material flow
- As Movable Jaw Plate: Orient ridges parallel to oscillation direction
- Mounting Torque: M22 bolts at 190-220 N·m
- Wear Monitoring: Color contrast reveals wear patterns
库存 182 件
PRODUCT
Description
Part 814320042600 Movable Jaw Plate: Symmetric Kinematics and Mn18Cr2 Metallurgical Specification
In the mechanical architecture of mid-sized primary jaw crushers, the Movable Jaw Plate (Part Number 814320042600) serves as the primary kinetic interface for comminution. Weighing 399 kg, this component transmits the eccentric motion of the pitman into compressive fracture energy. Unlike static liners, this plate operates under a complex vector of cyclic compressive stress (exceeding 250 MPa) and vertical scrubbing forces. The design features a symmetrical geometry, allowing it to function interchangeably as either a Fixed or Movable jaw die in compatible crushing chambers, thereby optimizing inventory logistics and reducing operational expenditure (OPEX).
This technical analysis evaluates the engineering attributes of the 814320042600 casting. We examine the strain-hardening capabilities of the solution-annealed Mn18Cr2 alloy, the tribological advantages of the 10-ridge profile, and the critical dimensional tolerances required to ensure secure fitment within the wedge-locking system.
Metallurgical Composition: Mn18Cr2 Solution Annealed Alloy
The operational longevity of a 399 kg crushing component is dictated by its microstructural response to impact. We utilize a strictly controlled Mn18Cr2 (ASTM A128 Grade C) chemistry, engineered to outperform standard Mn13 grades in abrasive environments.
Austenitic Stability and Phase Transformation
The casting process involves a precise solution annealing cycle at 1050°C, followed by rapid water quenching. This suppresses carbide precipitation at the grain boundaries, resulting in a fully austenitic matrix with high ductility (Elongation > 30%) in the as-supplied state.
Mechanism: Upon impact with feed material (granite, basalt, or reinforced concrete), the surface crystal lattice undergoes a stress-induced phase transformation from face-centered cubic (Austenite) to body-centered tetragonal (Martensite).
Result: The surface hardness increases from an initial 220 HBW to over 550 HBW (approx. 52 HRC). This work-hardened “skin” provides exceptional abrasion resistance, while the subsurface core remains ductile (Impact Energy > 140 J/cm²) to arrest crack propagation under shock loads.
Chromium Reinforcement against Plastic Flow
The addition of 1.8-2.2% Chromium creates dispersed chromium carbides within the matrix. This increases the initial yield strength of the alloy, mitigating the risk of “mushrooming” or lateral plastic flow. In movable jaw applications, excessive plastic flow can cause the plate to expand and lock against the cheek plates, necessitating thermal lancing for removal.
Geometric Engineering: Symmetrical 10-Ridge Profile
The geometric configuration of the 814320042600 is optimized for versatility and crushing efficiency.
- Symmetrical Interchangeability: The plate is designed with a mirror-image profile along the horizontal axis. This allows the component to be installed in either the fixed or movable position on compatible crusher frames. Furthermore, as wear is typically concentrated in the bottom 30% of the crushing chamber (the high-density discharge zone), the plate can be rotated 180 degrees. This effectively doubles the service life of the casting by utilizing the unworn upper section.
- Optimized Tooth Pitch: The 10-ridge configuration utilizes a specific pitch to maximize point loading. By reducing the contact surface area relative to a flat plate, the localized crushing pressure ($P = F/A$) is increased, allowing for efficient fracture of competent rock with lower energy input.
- Nipping Angle Dynamics: The ridge depth (12-16mm) contributes to an effective nipping angle. This grip is essential for preventing material slippage (rubbing) during the compression stroke, which is the primary cause of premature liner wear and reduced throughput.
Manufacturing Precision and Back Face Integrity
The interface between the jaw plate and the pitman (or front frame) is the most critical mechanical junction in the crusher.
Machining Tolerance (ISO 2768-mK)
The back mounting surface of the 814320042600 is not left in an “as-cast” condition. We perform precision machining to ensure a flatness tolerance of 0.3mm over the full length.
Engineering Necessity: A rough or warped back surface creates point contacts rather than full surface bearing. Under crushing loads, the plate will flex and micromove, causing fretting wear that gouges the pitman face. Once the pitman face is compromised, even new plates will fail prematurely due to lack of support. Our machined back ensures 100% load transfer, protecting the crusher’s capital components.
Quality Assurance and Non-Destructive Testing (NDT)
Manufacturing a 399 kg manganese casting requires rigorous process control to prevent internal defects.
- Ultrasonic Testing (UT): We adhere to ASTM A609 Level 2 standards. The casting is scanned to detect internal shrinkage porosity, particularly in the thicker mounting sections. Internal voids act as stress risers that can lead to catastrophic cracking under load.
- Dye Penetrant Inspection (DPI): The mounting holes and lifting lugs are inspected for surface micro-cracks ensuring safe handling and secure installation.
- Dimensional Verification: The mounting hole centers and wedge-locking angles are verified using coordinate measuring machines (CMM) to ensure seamless installation without field modification.
Technical Specifications Data
| Parameter | Specification Value | Standard / Note |
|---|---|---|
| Part Number | 814320042600 | Movable/Fixed Interchangeable |
| Component Weight | 399 kg (±2%) | Verified Scale Weight |
| Material Designation | Mn18Cr2 | ASTM A128 Grade C Equivalent |
| Initial Hardness | 210 – 240 HBW | As-Cast / Solution Annealed |
| Work-Hardened Potential | 550 – 580 HBW | Surface Hardness under Load |
| Tensile Strength ($R_m$) | ≥ 800 MPa | ISO 6892-1 |
| Yield Strength ($R_{p0.2}$) | ≥ 350 MPa | Resistance to Plastic Flow |
| Impact Toughness | ≥ 140 J/cm² @ -20°C | Charpy U-Notch |
| Tooth Configuration | 10 Parallel Ridges | Symmetric Profile |
Total Cost of Ownership (TCO) Analysis
While generic aftermarket plates may offer a lower initial purchase price, the TCO analysis favors engineered Mn18Cr2 components.
Generic Mn13 Plate:
– Lower wear resistance in abrasive applications (Silica > 10%).
– Poor dimensional fitment leads to pitman wear.
– Frequent changeouts increase labor costs and downtime ($2,000+ per event).
Premium 814320042600 (Mn18Cr2):
– 30-40% longer wear life due to higher work-hardening rate.
– Machined back protects the pitman.
– Symmetrical design allows for inventory consolidation (one spare fits both sides).
For a contractor crushing 150,000 tons annually, extending the liner life by even 20% results in significant operational savings that far outweigh the initial part cost difference.
Engineer’s Advice: Field Operations & Maintenance
[Option B: Pro-Tip] – The Rotation Protocol:
Because this plate (814320042600) is symmetrical, you have a massive advantage. However, many operators rotate too late.
The Rule: Rotate the plate top-to-bottom when the lower tooth profile is worn to 50% of its original height. Do not wait until it is smooth. Rotating at 50% ensures that you still have enough tooth structure to grip the rock effectively when that section is moved to the top (intake) zone. If you wait until the teeth are gone, the plate will cause slippage and “pop-outs” when moved to the intake position, reducing production capability.
[Option C: Field Case Snippet] – Wedge Tightening is Critical:
Manganese steel flows. It is a fact of metallurgy. When you install a new 814320042600 plate, the initial crushing impact will cause the plate to seat itself and slightly compress.
The Trap: Operators install the plate, tighten the wedges, and walk away. Three days later, the plate is loose, chattering against the pitman.
The Fix: You must re-torque the wedge bolts after the first 4 hours of crushing, and again after 24 hours. A loose jaw plate acts like a hammer inside your crusher, destroying the wedge system and the pitman face.
Technical Parameters of Applicable Jaw Crusher
Workshops And Warehouses
Cross-Brand Compatible
Our aftermarket casting division ensures that the 814320042600 is fully interchangeable with the OEM specifications for applicable models, ensuring identical weight distribution and geometric fitment.
| Brand | Series | Crusher Model |
|---|---|---|
| Mettso | Nordberg Jaw C series | C3054，C3055，C63，C80，C96，C105，C106，C110，C116，C120，C125，C130，C140，C145，C150，C160，C200 |
| Nordberg Bergeaud VB Series | VB46 ， VB57 ， VB67 ， VB83 ， VB93 ， VB105 ， VB108 ， VB0907 ， VB1008 ， VB1311 | |
| Sandvick | Jaw Crusher CJ series | CJ815, CJ615, CJ613, CJ612, CJ412, CJ411, CJ409, CJ211 |
| Kleemann | Mobicat Jaws series | MC100R EVO，MC110R EVO ， MC110Z EVO ，MC120Z PRO，MC125Z ， MC140Z，MC160PRR |
| SSTR Jaws series | SSTR1000，SSTR1100， SSTR1200， SSTR1250，SSTR1400， SSTR1600 | |
| Shanbao | Jaw Crusher PE series | PE150x250, PE250x400, PE400x600, PE500x750, PE600x900, PE750x1050, PE900x1200, PE100X1200, PE1200x1500, PE1500x1800. |
| Jaw Crusher PEX series | PEX250x750, PEX250x1000, PEX250x1200, PEX300x1300 | |
| Trio | CT Jaw Series | CT1030，CT1040，CT1048，CT1252，CT2036，CT2436，CT3042，CT3648，CT4073，CT4254，CT4763，CT6080，APS40 |
| Extec | QJ Mobile Crushers | C10 ，C12，QJ241，QJ341 |
| Allis Chalmers / Svedala | Allis Chalmers Superior Jaw Series | 36 x 48 Superior， 60 x 84 Superior |
| Allis Chalmers STD Jaws | 10x 24 ，15 x 24 ， 18 x 30 Model B ， 18 x 36， 24 x 36， 25 x 36 “A-1 New， 42 x 40 A1 ， 36 x 48 New ， 42 x 48 A1 ，48×60 ， 66 x 84 A1 | |
| Svedala CJ Series | CJ208，CJ209，CJ211，CJ408，CJ409，CJ411，CJ412，CJ612 ，CJ613，CJ615， CJ815 | |
| Svedala RT Series | RT6090 (24X36) ， RT75105 ( 30 x 42 ) ， RT60-120 (24 x 48 ) ， RT 80-120 (32 x 48) ， RT105-120 (42×48) ， R10580 (1050×800) | |
| Svedala Jawmaster Series | 1108HD (32 x 42) ， 1206HD (24 x 48) ， 1208HD (32×48) ， 1211HD (44 x 48 ) ， 1312HD (46×52) ， 1513HD (52×60) | |
| Terex | Jaques JW Range | JW40， JW42 ， JW45， JW55 |
| Jaques ST Range | ST36， ST42， ST47，ST48， ST54，ST60 | |
| Cedarapids JC Range | JC2236，JC3660，JC5460，JS3750，JS4552，JC5460 | |
| Cedarapids Old Range | 10×16，12×16，10×20，10×24，15×24，18×24，20x25A ， 18×30 ，10×36 ，12×36，15×36 ，18×36，20×36， 24×36，25×40，32×40，12×42，16×42，27×42，42×42，36×48， | |
| 12×48，16×48，22×48，42×48，57×48，35×54，36×60，54×60，10×72 | ||
| Finlay Mobile Jaw Series | J-960，J-1160，J-1170，J-1175，J-1480 | |
| Powerscreen Premiertrak | XA300， XA400 ， XR400 ， XA400S， XR400S， Premiertrak 600 ，XA750 | |
| BL-Pegson Premiertrack | 1100×650 ， 1100x650HA ， 1100x650HR ， 1100×800 | |
| BL-Pegson Premierplant | 900×600 ， 1100×650 ， 1100×800 | |
| BL-Pegson Stationary Jaws | 24×14 ，32×18 ， 32×22， 32×06 ， 36×20 ， 36×22 ， 36×24 ， 36×25 ，42x30B ， 42x30D ， 44×26 ，44×32 ， 48×42 | |
| Telsmith | Telsmith Old Jaw Range | 10×21，14×24，24×5，30×42，42×48 |
| Hydraulic Jaw Range | 2038, 2550, 3042, 3055, 3648, 3258, 3858, 4448, 5060 | |
| Hydra & Iron Jaw Range | H2238, H2550, H3244, H3450, H4448, H5060, H3042, H3055, H3648, H3258, H3858, ，4448IG ，5060IG, | |
| Komatsu | BR Jaw Series | BR100JG，BR200，BR210，BR300，BR350，BR380，BR500，BR550JG，BR580 |
| Chyi Meang | PJS Series | PJS800， PJS900，PJS1050，PJS100,PJS1100，PJR1350， PJS1260， PJS1400，PJS1500，CMNJS4836 |
| Comec Primary Jaw Crusher | P90.65， P900 ，P105.75 ， P1100 ，P1300 ，P1600 | |
| Comec Secondary Jaw Crusher | S800 ，S900 ，S1000 ，S1450 | |
| Goowin Barsby | Series 5 Jaws | 30″x18″，42″x24″ ，42″x30″ ，36″x6″ Granulator |
| Krupp | Jaw Range | ERC18-14 ，EB12-10 ，EB14-11 ，EB16-12，EB20-15 |
| Kawasaki | KS Series Jaws | KS-3624，KS-3018， KS-4230G，KS-4840，KS-6048， KD-4232G，KD-4842G |
| Hewitt-Robins | Jaw Range | 10×24， 18×30 ，10×36 ，12×36 ，15×36 ，20×36 ，24×36 ，30×36 ，30×42 ，12×48 ，22×48，30×48 ，36×48，42×48， 36×50 ，12×60，30×60，， 18×30 ，10×36 ，12×36 ，15×36 ，20×36 ，24×36 ，30×36 ，30×42 ，12×48 ，22×48，30×48 ，36×48，42×48， 36×50 ，12×60，30×60，48×60，30×62 |
| Lippmann | Jaw series | 2248, 2436, 3042, 3048, 3055, 3062, 3650, 3862, 4248, 5062 |
| Parker | Jaw series | Parker40x32 ， Parker 36×10 ， Parker 38×12 Stonesizer ， Parker 20×12 ， Parker16x10 ， Parker16x5 |
| Brown Lenox Kue-Ken | Jaw Series | Model 22(3 x 12) ， Model 24 (5 x 12)， Model 25 (7×12) ，Model 34 (6 x 16) ， Model 35(9 x 16)， Model 54( 8 x 24)， Model 55(10 x 24) ，Model 56 (12 x 24）Model 68 (9 x 30) ， |
| Model 69(12×39) ， Model 70 (15 x 30) ， Model 75S (20 x 30) ， Model 79 (8 x 36)， Model 80(10 x 36) Model 81(12 x 36)， Model 89 (16 x 36) ， Model 90(20 x 36) ， Model 95 (24 x 36) ， | ||
| Model 95S( 29 x 36) ， Model 104( 8 x 42) ， Model 105(10 x 42)， Model 106 (12 x 42)， Model 106S (14 x 42) ， Mode ，107 (17 x 42) ，Model 108 (20 x 42) ， Model 110(25 x 42) ， | ||
| Model 120 (30 x 42) ， Model 126(36 x 42) ，Model 145 (24 x 48) ， Model 150(36 x 48) ， Model 150A (40 x 48) ， Model 150s (42 x 48)， Model 160 (42 x 48) ， | ||
| Model 188 (26 x 60) Model 32 x 60 ， Model 200 (48 x 60) | ||
| Hitachi-Nakayama | Nakayama Primary Range | AC1410，AC2415，AC3219，AC3219B，AC4219，AC4220，AC4220B， AC482，AC6030 |
| Nakayama RC Range | SK3624，RC3624，RC4224，RC4228，RC4832，RC5042，RC6048，RS4032，RS4230 | |
| Hitachi Mobile Jaw | HR240，HR420G | |
| Fintec | Mobile Jaw crushers | 1107RJ ，1108 ，542， 570 ，640 |
| McColskey | Mobile Jaw Series | J35 ，J40， J44， J45， J50， J40V2， J45V2 ，C50 |
| Minyu | MS Jaw Series | MS2416 ， MS3020 ， MS3624 ， MS4226 ， MS4230 ， MS4832 ， MS4840 ， MS5432 ， MS6040 ， MS6048 |
| MSH Jaw Series | MSH3624 ， MSH4230 ， MSH5434 | |
| Russia | CMD/SMD Jaw Series | СМД-741 ，СМД-108，СМД-109，СМД-110，СМД 118，СМД 111，СМД 117 |
| Keestrack | Mobile Jaw Series | B3， B4 ， B5 ， B7 |
| Astec | Pioneer Standard Jaw Series | 10×16，10×20，10×24，15×24，10×30，18×30，8×36，9×36，10×36，13×36，15×36，18×36，20×36，24×36，26×40，30×42，36×42，31×44，35×46，10×47，21×48，42×48，24×49， |
| 33×50，28×54，30×55 | ||
| KPI-JCI Jaw Series | 2742 ，2650，3055，3365，4448IG，5060IG，2238H，3244H，3450H | |
| Tesab | Mobile Jaw Range | 10570, 10580, 700i, 800i, 800ie |
| Liming SBM | Liming /Vipeak PE Range | PE 400×600 ，PE 500×750 ，PE 600×900 ，PE750x1060，PE 900×1200，PE 1000×1200 |
| Shanghai Shibang /Zenith PEW Range | PEW250x1000，PEW250x1200，PEW400x600，PEW760，PEW860，PEW1100，PEW200x1300 | |
| CX Range | C6X80，C6X100，C6X110，C6X145，C6X160，C6X200，HJ98，HJ110，HJ145 | |
| Jaw Plate Corrugated | CJ Series | CJ208，CJ209，CJ211，CJ408，CJ409，CJ411，CJ412，CJ612 ，CJ613，CJ615， CJ815 |
| Universal Engineering | Universal Jaw Crusher Range | 24×36，25x40WRB，30×42，32x42WRB，12×48，22×48，32×48，36×48，44x48WRB ，32×54 ，42×50，12×60 ，50x60WRB |
*All manufacturer names, part numbers and descriptions are used for reference only. They belong to their respective OEMs. NEWREG supplies aftermarket replacement parts – independently manufactured and warranted, not OEM-originated. No affiliation with OEMs is claimed or implied.
“Authoritative Engineering Data: All critical metallurgical specifications and dimensional tolerances (e.g., ±0.05mm) are strictly governed by the master English documentation. While localized versions are provided for operational reference, the English original remains the sole binding authority for quality inspection and technical compliance.”
English 
French 
German 
Spanish 
Russian 
Arabic 
Portuguese 
Turkish