HAZEMAG Horizontal Impact Roll Crusher | HHI

HFB – HAZEMAG Impact Roll Crusher Type Feed size up to [Inch] Throughput rate [t/h] Drive power of roll [HP] HHI 1515 40 x 55 550 - 2,000 200 - 700 HHI 1518 45 x 70 900 - 2,800 400 - 1,000 HHI 1521 45 x 85 1,100 - 3,300 700 - 1,000 HHI 1525 45 x 95 1,300 - 4,400 1,000

Particle Size and Standard Deviation - CPM

(M/sec) with roll speed differentials. Roll speed differentials simply means one roll turning faster than the other and is usually described in the form of a ratio, slow roll speed expressed as 1. For example, rolls operating at 1.5:1 differential with a fast roll speed of 1,000 RPM would have the slow roll …

Roll Crusher - an overview | ScienceDirect Topics

Roll crushers apply shear or compression to the material that is going to be reduced in size. This action occurs between two hardened surfaces. The speed and diameter of the rolls, the desired capacity, and the feed and product size distribution are all critical in the …

Roll Diameter - an overview | ScienceDirect Topics

The roll size of a roll crusher was 30.5 cm × 90.1 cm. Gypsum rock (S.G. = 2.7, bulk density = 1.7 t/m 3) is to be crushed. Determine 1. the set in order to crush at the rate of 12 t/h and 10 rpm speed of the rolls, 2. the ratio between capacity and peripheral speed if the set was 2.5 cm, 3. the nip angle when the crusher feed size is 10 cm,

Roller Mills & Roll Crushers 1600 Series |CPM

Roskamp Roll Crushers are designed for the most demanding crushing applications, with roll corrugations and roll speed differential ratios available to match any operating conditions. Available in two-, four- and six-roll designs, the 1600 Series has a 16" roll diameter and a range of 50 to 300 HP.

Crusher - Wikipedia

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, sand or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.


– Serrated or toothed roll crusher Smooth roll crusher • Two heavy smooth faced roll rotating towards each other at same speed on parallel horizontal axes • Size of the material caught by the rolls depends upon the coefficient of friction between the material and the roll surface • Dp = 0.04R + g Dp – maximum size of particle . R ...

Double Roll Crusher, 13mm Particle Size - Gilson Co.

It can reduce most rock-like materials of 0.5in (13mm) feed size to minus No. 10 (2mm) at a capacity up to 8,000lbs (3,629kg) per hour. Operates at 60Hz. Select preferred voltage of 230V or 460V when ordering. LC-14F Marcy® Double Roll Crusher model has the same features and capabilities as the LC-14, but operates at 50Hz. Voltage must be ...

Roll crushers - SlideShare

Apr 24, 2015· CAPACITY OF ROLL CRUSHER The capacity of a roll crusher will vary with: The kind of stone The size of feed The size of the finished product The width of rolls The speed at which the rolls rotate The extent to which the stone is fed uniformly into the crusher. 13.

HAZEMAG Horizontal Impact Roll Crusher | HHI

The horizontal impact roll crusher of the HHI series mainly consists of two machine components: the impact roll and the chain conveyor. The arrange-ment of the crushing roll above the chain conveyor permits to use the chain conveyor as feed and as discharge conveyor. This system for crushing has proved itself in numerous applications in coal and

Roll Crushers | Gundlach Crusher Brand | TerraSource Global

5000 Series Roll Crushers. Roll diameter: 762 mm and 915 mm (30" and 36") Roll face length: 508 mm to 3050 mm (20" to 120") Shaft material: 4140 steel, Forged; Used for sizing feed materials up to 152 MPa (22,000 psi) compressive strength. Suggested Installation Drawing For 5000S series (pdf) Suggested Installation Drawing For 5000D ...

Double Roll Crusher|Double Roller Crusher|Double Roll Sand ...

4.Inclination of side walls is adjustable to improve material feed and intake of larger feed lumps 5.In most cases pre-screening is not necessary, as the fines contained in the final product can smoothly pass through the crushing tools 6.Low dust burden 7.Low specific wear rate due to slow circumferential speeds


The anticipated maximum feed size determines the roll diameter. The size of the desired product can be fixed by the adjustable gap width between tip and bottom of tooth. The throughput rate is a function of roll width, gap width and peripheral speed. Both swings systems are carried in the base frame. The crusher rolls are hollow cylinders with ...

What is a roll crusher? – Mineral processing equipment

The feeding rate should be proportional to the rotating speed of rolls, as blocks should be feed to the crusher at the tangential speed rate of rolls. For smooth types, the roll diameter D should more 22 times than the feeding largest particle d to get a reduction ratio 1/2 or 1/3 (D>22d), or more 26 times to get 1/4 reduction ratio (D>26d).

Crushing and Screening - Agg-Net.com

the cone crusher is limited to a certain top size of material feed. Cone crushers use approximately one horsepower per ton per hour making a 1in product. Typically, around 15–20% of oversized product is recirculated for re-crushing to size. Roll crushers – Roll crushers are another form of compression crusher that can be used to crush hard

Excellent Feed Pellet Crusher-Make Large Pellets into Small

However, the power required by triple-roll crusher is slightly greater than that of the double-roll because it does more work in reducing the size of the material. D. The two-roll crusher is more suitable for crushing poultry feed pellets, such as chicken feed, duck feed and goose feed etc. The three-roll crusher is more suitable to crush ...

Crushing of coal and calculation of size reduction efficiency.

Feb 25, 2015· Double Roll Crusher 2/25/2015 6:58:05 AM 35 36. Double Roll Crusher 2/25/2015 6:58:05 AM 36 37. Roll Crusher Roll crusher consists of two horizontally mounted rigid cylinders always moving in opposite direction but towards each other and downward. The ore particles to be crushed and nipped are pulled inward through the rolls by friction.

Rolls Crusher for Sale - 911Metallurgist

Crusher Feed Size and Roll Diameter. ... For any given size of feed, the permissible speed is a direct function of the roll diameter. (C) For any combination of feed size and roll diameter, heavy-duty, high-spring-pressure rolls will stand higher speeds than will lighter rolls, provided that the angle of nip is not too great for the increased ...

Correct Rock Size for Jaw Crusher Feed | What do Jaw ...

Jaw Crusher Feed In case you wonder "can a jaw crusher just crush... anything"? If I can place it in the crusher cavity (even if it look like a Volkswagen) and actually or eventually crush it, does it qualify as 'ideal crusher feed'? If

Rock Crushing Rule of Thumb - Mineral Processing & Metallurgy

Dec 23, 2017· Gyratory crusher: feed diameter 0.75 to 1.5m; reduction ratio 5:1 to 10:1, usually 8:1; capacity 140 to 1000 kg/s; Mohs hardness <9. More suitable for slabby feeds than jaw crusher. [reduction by compression]. Roll crusher: feed diameter 1 cm: reduction ratio 5:1 to 10:1; capacity 0.3 to 20 kg/s: Mohs hardness < 7.5. Suitable for softer ...

Bauermeister Roll Crusher 250.2 For Grinding Fertilizers ...

The narrow particle size distribution is achieved by controlling a combination of variable including roll speed, roll gap, differential speed, feed rate and roll surface design. The 250.2 features a welded, dust-tight machine housing with polished smooth inside surfaces.

Smooth Roll Crusher – CPC – Crushing Processing

A typical application: fine crushing e.g. from 30 mm feed size to 5 mm product size, approx. 80% target particle size largely avoiding fine grain and dust; Crushing roll surface according to the material characteristics (smooth, machine cut grooves or built-up welded rips) Integration in semi-mobile plants possible; Mode of Operation

Size Reduction Equipment

Crushers : Smooth Roll Crushers Heavy smooth faced metal rolls turning on parallel horizontal are working elements of smooth roll crusher. Particles of feed caught between the rolls are broken in compression and drop out below. The rolls turn towards each other at the same speed. They have relatively narrow faces (300-917mm)

Roll Crusher with grooved & plain rolls of 200mm diameter ...

Roller Speed: 120 rpm: Hopper Feeder: Feed Hopper with size 350 X 350mm provided with screen of 20mm dia openings for protecting the operator hands and oversize particles from entering the crushing zone: Roll Gap Adjustment: The gap between the roll can be adjusted by a spring loaded screw rod from 1-12 mm: V- Belts

Roll Crusher Manufacturer & Design | Williams Crusher

Choosing between a single roll crusher and double roll crusher depends upon the type of feed material, feed size, product size desired, and consistency of both feed and product. Both single and double roll crushers operate most efficiently with dry, friable materials.

Gundlach Multi-Roll Crushers - TerraSource Global | Size ...

material to final desired product size. Gundlach Roll Crushers Our heavy-duty Gundlach Crushers roll crushers ... • Slow roll speed, ... power consumption and operational costs • Accepts large feed sizes up to 1200 mm • Minimal fines generation • Excellent top size control without slabbing • Throughput can range from 10 TPH up to over

Construction, Working and Maintenance of Crushers for ...

reduction cycle. Generally gyratory crushers, jaw crushers, high speed double roll crushers, low speed sizers, impactors and hammer mills are used as primary crushers. In the secondary and subsequent stages, the material is further reduced and refined for proper size and shape, mostly based on specifications.

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