Types of material handling equipments including hoisting equipments , cranes ,conveyer belts, forklift.

1. PRESENTED BY:
 Sulakshya Gaur (121684)
 Aayush Mittal (121685)
PRESENTED TO:
Mr. LAV SINGH

2.  Belts Conveyor
 Forklifts
 Mobile Cranes
 Tower Cranes
 Hoists

4. › The belt conveyor is an endless belt moving over two end pulleys at
fixed positions and used for transporting material horizontally or at
an incline up or down.

5. Belt: It forms the moving and supporting
surface on which the conveyed material
rides. It is the tractive element.
Idlers: It form the supports for the carrying
and return stands of the belt.
Pulleys: It support and move the belt and
controls its tension.
Drive: imparts power to one or more
pulleys to move the belt and its loads.

6. •Portable conveyors are used primarily for
applications involving mobility and space
is a high priority.
•Portable conveyors are very versatile.
•Loads of up to 1000lbs (depends on the
angle)
•Can fold up 5-10ft and extend up to 17ft.
•These are more common for small scale
production, where use is temporary.

7. › Roller conveyor consisting of fixed-location
rollers over which materials are moved by
gravity or propulsion .
› Can safely go up to 60 fpm (depending on
size of material)
› Up to 25,000 lbs (for most depends on
support and material used)
› No real restrictions on volume of objects
used on conveyor.
› Inexpensive, simple to use and can vary
depending on the needs of the business.

8. › A wider range of material can be handled which
pause problems in other transportation means.
› Higher capacity can be handled than any other
form of conveyor at a considerably lower cost per
tonne kilometre.
› Longer distances can be covered more
economically than any other transportation system. A
single belt conveyor or a series of belt conveyors can
do this.

10. › A forklift truck (also called a lift truck, a fork truck, or a forklift)
is a powered industrial truck used to lift and move materials
short distances.
› The forklift was developed in the early 20th century by
various companies including the transmission manufacturing
company Clark and the hoist company Yale & Towne
Manufacturing.
› From then forklifts have become an indispensable piece of
equipment in manufacturing and warehousing operations.

12. › Forklifts are rated for loads at a specified maximum
weight.
› This information is located on a nameplate provided by
the manufacturer, and loads must not exceed these
specifications.
› A lift truck can weigh two to three times as much as the
lifted capacity.
› A lift truck usually weighs twice its capacity.
Component 2:1 ratio Estimated lbs
Truck Weight 8,000 lbs
Capacity 4,000 lbs
Operator 175 lbs
Total 12,175 lbs

13.  The black spot in the triangle below represents the Center of Gravity.
 The Center of Gravity (CG) shifts according to the movements of the
truck.
 If the CG moves outside the triangle the truck will overturn.

14.  Figure 1 shows the CG
shift when the truck is
loaded and braking.
 Figure 2 shows the CG
shift when the truck is
uneven or turning with
excessive speed.

15. Construction cranes are generally classified as:
› Mobile Cranes
› Tower Cranes

16.  The full revolving superstructure of this unit is mounted on a pair of
continuous , parallel crawler trucks.
 Machines of 100- ton capacity and above are built for lift
capability and do not have heavier components required for duty
cycle work.
 Crawler cranes range in lifting capacity from about 40 to 3,500
short tons (35.7 to 3,125.0 long tons; 36.3 to 3,175.1ton).

17.  Crawler cranes have both advantages and disadvantages
depending on their use. Their main advantage is that they can move
around on site and perform each lift with little set-up, since the crane
is stable on its tracks with no outriggers.
 In addition, a crawler crane is capable of traveling with a load.
 The main disadvantage is that they are very heavy, and cannot
easily be moved from one job site to another without significant
expense.
 Typically a large crawler must be disassembled and moved by trucks,
rail cars or ships to its next location.
 The soil failure under these machines is the also a problem when they
are operating on soils of low bearing capacity

21.  A crane mounted on an undercarriage with four rubber tires that is
designed for pick-and-carry operations and for off-road and
"rough terrain" applications. Outriggers are used to level and
stabilize the crane for hoisting.
 These telescopic cranes are single-engine machines, with the
same engine powering the undercarriage and the crane, similar to
a crawler crane. In a rough terrain crane, the engine is usually
mounted in the undercarriage rather than in the upper, as with
crawler crane. Most have 4 wheel drive and 4 wheel steering
which allows them to traverse tighter and slicker terrain than a
standard truck crane with less site prep.

22.  These cranes have a high ground clearance and ability to move
up on slopes of upto 50% to 70%.
 They are sometimes also reffered as “Cherry Pickers”.
 The most common models are are in the range of 18 to 50 ton.
 Typically they are used as utility machines.
 They are primarily lift machines but are capable of light intermittent
duty cycle work.

24.  A crane mounted on a truck carrier provides the mobility for this type
of crane. This crane has two parts: the carrier, often referred to as the
Lower, and the lifting component which includes the boom, referred
to as the Upper.
 These are mated together through a turntable, allowing the upper to
swing from side to side.

25.  The upper is usually powered via hydraulics run through the turntable
from the pump mounted on the lower.
 Generally, these cranes are able to travel on highways, eliminating the
need for special equipment to transport the crane unless weight or other
size constrictions are in place such as local laws.
 Many truck cranes have slow-travelling capability while suspending a
load. Great care must be taken not to swing the load sideways from the
direction of travel.

27. Truck-mounted crane building a bridge

28.  mobile crane with the necessary equipment to travel at speed on
public roads, and on rough terrain at the job site using all-wheel and
crab steering. AT‘s combine the roadability of Truck-mounted Cranes
and the manoeuvrability of Rough Terrain Cranes

31. • The cranes are typically attached to the existing roof
structure – columns to support the crane runway are not
needed
• Overhead crane is used in the steel industry
• These can be built using typical steel beams or a more
complex box girder type.

33. Capacity up to 10-50 ton
Span up to 60 ft.
Bridge-travel speed to 160 fpm
Trolley-travel speed to 100 fpm
Hoist speed to 41 fpm

34.  Floating cranes are used mainly in bridge building
and port construction, but they are also used for occasional loading
and unloading of especially heavy or awkward loads on and off ships
 Crane vessels are often used in offshore construction
 Floating cranes have also been used to salvage sunken ships.

36.  Some floating cranes are mounted on a pontoon, others are
specialized crane barges with a lifting capacity exceeding 9,072 tons
and have been used to transport entire bridge sections
 The largest revolving cranes can be found on SSCV Thialf, which has
two cranes with a capacity of 7,100 tonnes each.

38.  Fixed to the ground on a concrete slab (and sometimes attached to
the sides of structures as well).
 Tower cranes often give the best combination of height and lifting
capacity and are used in the construction of tall buildings.
 Provide high lifting height & good working radius.
 Takes up limited area.

40. 1) Top Slewing Tower Crane(Fixed Tower)
2) Bottom Slewing Tower Crane(Slewing Tower)

41.  Have fixed towers.
 Swing circle mounted at the top.
 Allows only jib , tower top, operator cabin to rotate.
 Setting up and dismantling top slewing crane require more time & is
complicated as compared to bottom slewing.

42.  Specifications:
 Max capacity:3 ton
 Maximum Radius:150.9 ft
 Maximum Tip Capacity:1.1 ton
 Hook height per base: 127.6 ft
Courtesy Manitowoc cranes ltd

43.  Jib length: 100-200ft
 Section length:10-20 ft
 Base dimensions: 13 by 13 to 20 by 20ft
 Tower cross sections:4 by 4 to 8 by 8 ft
 Maximum lifting capacity at the end of jib:2000-10000 lb
 Hoisting and trolleying speed:80ft/min

44.  Have swing circle located at the
base.
 Both tower and jib assembly
rotate relative to the base.
 Erect themselves using their own
motors hence also called “self-erecting”
or “fast-erecting”
cranes.

45.  Low lifting capacity
 Limited mobility as compared to mobile cranes.