上海美矿机械有限公司

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 MJ颚式破碎机为单肘复杂摆动式，重型设计，采用对称深破碎腔、大进给口和优化啮合角，达到高运转率、 大 破碎比、高生产率的颚式破碎机。整机寿命长，磨损小，维护操作方便，液压或机械调整排矿口机构简单可靠。
MJ jaw crushers are of single-elbow compound swing type and heavy-duty design, using symmetric deep crushing chamber, big feed opening and optimized meshing angle to achieve high operation rate, large crushing ratio and high productivity. With crusher long service life, low wearing, easy for maintenance and operation, hydraulic or mechanical adjustment of the discharge mechanism is simple and reliable.

优化结构：强度高，重量轻，结构简单而坚固
Optimized structure:high strength,light weight,simple structrure and strong
 

MJ系列颚式破碎机充分利用了CAD及有限元分析方法，在长
期经验累积的基础上优化了破碎机结构。该机的设计强调在 保证并提高强度的同时减轻设备重量，增加可靠性、安全性 与经济性。定颚与动颚均为箱形带筋板铸件，重量轻强度与 刚度高，双重密宫密封的润滑系统，安全可靠； 全部焊缝避开应力集中区，同时在应力集中区采取改变部件 弧度以提高强度。
 
MJ series of jaw crushers make full use of CAD and analysis methods of finite element to optimize the crusher.
structure based on long-term experience accumulation. The machine's design emphasizes reducing the equip-
 
ment weight while ensuring and increasing the strength, increasing reliability, safety and economy. Both fixed and moving jaw plates are box-shaped castings with rippled plate, with the light weight and high strength and stiffness, equipped with a double-sealed sealing lubrication system, which can be safe and reliable;
All welds are avoided from the stress concentration zone, changing the curvature of the component in the stress concentration zone is adopted to increase the strength
 


方形大进料口，对称深腔破碎腔，提高进料能力
Square large feeding,symmetrical deep cavity without dead zone crushing chamber
To improve feeding capacity

MJ系列颚式破碎机有近乎正方形的大进料口，深腔并且无死
 
区的破碎腔设计，提高进料能力与产量 动颚顶部装有一块可以更换的厚护板，用以保护动颚可承受
进料的冲击。 进料口动颚上方不需安装挡料板，进入破碎机的大块物料可
以直接落入破碎腔的活动区。 传统颚式破碎机采用的是的非对称破碎腔设计，其有效进料
口尺寸小于额定开口。该系列破碎机采用的是对称破碎腔设计，
 
使实际开口等于额定开口，提高了进料能力。
 
 
 
MJ series of jaw crushers are equipped with a nearly square large feed opening, deep cavity and with design
 
of non-dead zone crushing chamber, which can improve the feeding capacity and output.
 
The top of the moving jaw is equipped with a replaceable thick protection shield for the moving jaw to under- take the feeding impact.
There is no need to install a block plate above the moving jaw of feed opening, and the bulk minerals entering the crusher can fall directly into the movement area of the crushing chamber.
The traditional jaw crushers are adopted with asymmetric crushing chamber design with an effective feeding size smaller than the rated opening. The series of crushers are adopted with symmetrical crushing chamber design, so that the actual opening is equal to the rated opening, which improves the feeding capacity.
 

 
破碎机规格
Model		 MJ4090 MJ4120 MJ6120 MJ6130 MJ6150 MJ8150
给料口（mm）
Feeding  Size		 895×660 1200×830 1200×1100 1300×1130 1500×1070 1500×1300
L=最大长度(m) 2.55 3.23 3.61 3.76 4.11 4.50
W=最大宽度(m) 1.88 2.57 2.35 2.47 3.00 2.90
H=最大高度(m) 2.38 2.95 3.51 3.85 3.33 4.19
D=飞轮直径(m) 1.60 1.86 1.86 2.17 1.76 2.17
F=给料高度(m) 1.58 1.93 2.50 2.68 2.39 3.05
发运体积(m³) 13 23 32 38 48 58
排料矿口范围（mm）
（CSS）Range		 50-175 75-275 125-275 125-300 125-300 150-300
破碎机重量（kg）
Weight		 13200 27000 34500 41500 53000 63500
电动机功率（kw）
Motor Power		 75 132 160 160 200 200
生产能力（t/h）
Capacity		 85-320 240 305-800 330-965 385-1090 480-1155

紧边排矿口CSS
（mm）		 破碎机型号  Model
MJ4090 MJ4120 MJ6120 MJ6130 MJ6150 MJ8150
40 　 　 　 　 　 　
50 85-115 　 　 　 　 　
75 95-155 160-220 　 　 　 　
100 120-195 220-295 　 　 　 　
125 145-230 270-350 3295-390 330-435 385-495 　
150 170-270 320-435 355-460 385-500 440-595 480-620
175 195-315 390-510 400-525 445-570 505-670 540-705
200 　 440-575 450-590 490-645 575-745 615-805
225 　 490-645 505-665 550-735 635-820 670-880
250 　 555-725 555-730 605-805 705-925 745-980
275 　 605-795 605-800 660-880 770-1005 825-1060
300 　 　 　 720-965 820-1080 880-1155

上表中给出的产量只是说明破碎机能力的一个近似值。所对应的条件是开路破碎，物料容重为1600 kg/m3 干燥的爆 破花岗岩，其最大尺寸满足破碎机允许的最大给料粒度。表中较低的值适用于给料中小于排矿口尺寸的细料被剔除的 情况，较高的值则适用于含有细料的情况。破碎机可以正常运行的最小紧边排矿口取决于给料的粒度分布、材料的可 碎性(Wi)、给料中污染物的含量、所安装的颚板类型及其材料种类等。

 

The capacity shown in the table only indicates an approximation of the capacity of the crusher. The corresponding condi- tions are open-circuit crushing, dry blasting granite with a bulk density of 1600 kg/m3, the maximum size of which can meet the maximum feed size allowed by the crusher. The lower values in the table apply to the circumstance where the fines of the feeding less than the size of the discharge are rejected, and the higher values apply to the circumstance with contents of fines. The CSS that the crusher can operate normally depends on the feeding granularity distribution, the friability of the material (Wi), the amount of feeding contaminants, the type of jaw plates installed, and the type of its material used.

 

排料粒度特性曲线 本曲线为中等可碎岩石(破碎功指数Wi=16)的典型粒度特性曲线， 在破碎产品中，约有75%的产品小于紧边排矿口(CSS)。 粒度曲线的形状和产品小于破碎机紧边排矿口(CSS)的比例，取决于 原料的特性。对于可碎性不同的岩石(Wi在20-12之间)，通常其破碎 产品中大约有65%-85%小于破碎机的紧边排矿口。

 

The Characteristic Curve of Discharge Granularity This curve is a typical granularity characteristic curve of medium crushable rock (Crush- ing Work Index Wi=16). About 75% of the products are less than the CSS. The shape and product of the Granularity Curve is less than the ratio of the CSS, depending on the characteristics of the minerals. For rocks with different friability (Wi between 20-12), normally about 65%-85% of the crushed product is less than the crusher CSS.