Rod mill

【Processing capacity】：1.3-300(t/h)
【Motor Power】：22-1120（kw)
【Application range】：Widely used in artificial stone sand, concentrating plants, chemical plant power sector, ore, cement, silicate products, building materials, refractory materials, fertilizers, glass, ceramics and metal beneficiation.

Introduction:A rod mill is a mill in which a grinding body is a steel rod. Rod mills are available in dry and wet versions, typically in a wet overflow type, which can be used as a Class 1 open-circuit grinding.

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Equipment introduction

A rod mill is a mill in which a grinding body is a steel rod. Rod mills are available in dry and wet versions, typically in a wet overflow type, which can be used as a Class 1 open-circuit grinding. Rod mills are widely used in artificial stone sand, concentrating plants, chemical power plants, ores, cement, silicate products, building materials, refractory materials, fertilizers, glass, ceramics and metal beneficiation.

Classification of rod mills:

1. Overflow type rod mill

The overflow type rod mill is the most common application. The product size is finer than the other two. It is generally used to grind the crushed product and then supplied to the ball mill. The product size is 2 to 0.5 mm.

2. End of the row of mined rod mill

The end-end barging rod mill is generally used for dry grinding. The product has a coarser particle size. This rod mill can also be used as wet grinding. High gradient and good flow can be obtained by using a peripheral ore bar mill. Rate, product size is 5 to 2 mm.

3. Center around the mine bar mill

The center of the center of the ore bar mill can be used for wet and dry, the product size is coarser, the material is fed from both ends of the rod mill, the grinding process is short, and it is quickly discharged, and the gradient is high. This rod mill is mainly used in the aggregate industry to produce sand and gravel.

Performance characteristics

The rod mill is a motor that rotates through the reducer and the large and small gear pairs to drive the rotary part. The inside of the cylinder is equipped with a suitable grinding medium-steel rod. The grinding medium is under the action of centrifugal force and friction force. The feed portion continuously enters the inside of the cylinder, is pulverized by the moving grinding medium, and discharges the product out of the machine by the force of overflow and continuous feeding for the next process.

working principle

1. Save power: Compared with older equipment, it saves more than 40% of power. The product has a relatively uniform particle size and a small proportion of coarse particles and overgrinded slime. The particle size characteristics of the rod mill product and the ball mill product are almost the same as those of the closed-circuit working ball mill.

2, uniform output and high output: using advanced controllable in-and-out rod mill technology, combined with the actual user's grinding materials with appropriate grinding body, change the surface contact of the traditional ball mill to line contact, so that the discharge granularity is more Uniform, higher output, suitable for ore with different hardness (Mohs hardness 5.5~12).

3. Feeding particle size tolerance: The crushing ratio of the rod mill is 15:1 to 20:1. The conventional crushing process of most foreign plants is composed of crusher, rod mill and ball mill. China's concentrator uses rod mill. There are not many machines, and the size of the ball mill's ore is too high, resulting in excessive energy consumption, grinding media consumption, and lining consumption. Because the grinding rod is in line contact, the large material is firstly ground and has selective grinding action. Therefore, the product has a narrow particle size range, uniform product size, less over-grinding phenomenon and higher grinding efficiency.

Technical Parameters

Model	Cylinder diameter (mm）	Cylinder Length (mm)	Volume(m3)	Cylinder RPM (r/min)	Bar load (t)	Feeding size (mm)	Discharging size (mm)	Capacity (t/h)	Motor power (kW)	Weight （t）
MB0918	900	1800	0.9	35.4	2. 5	<25	0. 2-2.5	1. 3-2.6	22	5.2
MB0924	900	2400	1.2	35. 4	3.5	<25	0. 2-2.5	1.35-2.9	30	5. 6
MB1224	1200	2400	2,28	34	4.8	<25	0. 2-2.5	2. 0-5. 0	55	13. 5
MB1530	1500	3000	5	26. 5	8	<25	0. 2-2.5	4.8-12	95	16.7
MB1836	1830	3600	7.6	22.5	17	<25	0. 2-2.5	6-17	132	31
MB2130	2100	3600	9.2	20.9	22	<25	0. 2-2.5	14-40	155	37
MB2136	2100	3600	11	20.9	24	<25	0. 2-2.5	15-45	210	39
MB2436	2400	3600	14.6	19	28	<25	0. 8-5.0	26-65	280	58
MB2736	2700	3600	18.4	17.5	42	<25	0. 8-5.0	30-125	400	86
MB2740	2700	4000	20.5	17.5	47	<25	0. 8-5.0	40-150	400	91
MB3040	3000	4000	25.9	16.2	51	<25	0. 8-5.0	62-165	500	130
MB3245	3200	4500	33	15.5	56	<25	0. 8-5.0	70-210	630	137
MB3250	3200	5000	35	15.5	60	<25	0. 8-5.0	75-240	710	143
MB3645	3600	4500	40.8	14.5	78	<25	0. 8-5.0	83-260	1000	168
MB3654	3600	5400	50	14.5	94	<25	0. 8-5.0	100-330	1120	192

Advantages

1. Iron rods can move inside mill with regularity.The curvature of end cover of wet rod mill is relatively small, which renders iron rods move inside mill with regularity.

2. Easy installation and maintenance.

3. Quick discharging.The diameter of discharge hollow shaft is comparatively bigger, which makes overhaul easier and diminishes the liquid level of ore pulp. Consequently, discharge becomes faster.

4. Uniform ore particles.

5. Low incidence of overly grinding.Uniform ore particles. Less incidence of overly grinding.

FAQ

Q1: Are you trading company or manufacturer?

A: We are factory.

Q2: How long is your delivery time?

A: Generally it is 7-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.

Q3: What is your payment method?

A: 30% of total price should be paid by T/T as down payment; 70% balance payment should be paid by T/T before delivery.

Q4: What Information should customers give us, So that we can be able to provide you suitable quotation and service.

What minerals are you separating?

What's the maximum size of your raw minerals?
How much capacity do you need per hour for your project?

Q5: How long is the warrenty of your equipments? Does your company supply the spare parts?
A: The warranty period of crusher equipments is one year. and we will supply the spare parts for you at lowest cost.

Q6: If I need the complete crushing plant can you help us to build it?

A: Yes, we can help you combine a complete crushing line and give you related professional advices as long as you need. We had already build many mining projects in China & Overseas.

Q7:what's your motor brand?what bearing do you use?

For Motor-China top brand, also can use Siemens as per request .

For Bearing China top brand ZWZ, also can use SKF/NSK etc as per request