technique secrets for the cement pole making machine

Broadly speaking, any confidential business information which provides an enterprise a

competitive edge may be considered a trade secret. Trade secrets encompass manufacturing

or industrial secrets and commercial secrets.

As for our products, there do hide some secrets,which will kill me if i told to my

competitors. if you want to know, then contact me secretly.(rebecca@sdcicq.com)

This concrete pole making machine consist of 7 sets of centrifugal machine&30kw frequent c

binet,electric cabinet, centrifugal machine wheel adopt killed steel,same to train wheel raw ma

terial, has strong wear resisance.Steel mold running wheel and centrifugal machine have perf

ctly fitting solid degree Base is adopted

ox structure,the whole machine is equipped with automatic control device, to realize low spee

d,medium speed,high-speed timing control feature.

Technical Index of Centrifugal type Concrete Pole Machine

No.	Item		Unit	Model
				Double-wheel	Three-wheel
1	Riding wheel thread		MM	1870
2	Riding wheel wheelbase		MM	1500-2800
3	Riding wheel external diameter		MM	800-920
4	Riding wheel width		MM	100
5	Angle between wheel center and the center of steel mould		(°)	75°-110
6	The Max. length of molding drainage pipe		M	2-4
7	The Max. diameter of molding drainage pipe	Plain top/tongue and groove/pipe-jacking	MM	Φ2600	Φ1800
		Bell and spigot		Φ1800	Φ1800
8	The motor power		KM	37-90	55-132
9	The range of speed of main drive axle		r/min	100-500(continuous)	100-500(continuous

two different ways to produce concrete pipe,cement culvert pipe

 centrifugally spun concrete pipe system

             

This technique adopt wet concrete, the pipe body structure has various layers when formed,thus it influence the concrete load resistance. Concrete is usually C30  ,can also do C40. But the pipe nozzle rigidity is lower than the body, not good to be a jacking pipe. During the forming process, concrete pipe mould spun quickly on the centrifugal machine,so does the steel wire cage. These tmay lead to two situation of short life span of the concrete pipe.

1.Steel wire cage has unfasten welding point, result in the steel wire shift or missing,make the pipe locally without steel wire.

2.Wire cage is hardly set in the middle ,Reinforcing mesh is eccentric,namely wire cage protection layer is not even. What’s more, this technique requires large quantity mould to ganrantee the the production, with the mould size deviation and frequent de-molding operation, steel moulds transformation easily occur. Thus lead to Pipe roundness, the perpendicularity of the nozzle, the size of the pipe diameter size and length,which has a bad influence to project quality. The pipeline leakage will cause surface subsidence, can pollute on either side of the soil and groundwater.

roller suspension concrete pipe system

                 

Adopt harsh concrete, pipe structure is even, has great load resistance capacity. We adopt c30 and c40 concrete as raw material. Lower noise than centrifugal technique when pipe forming, clean environment than centrifugal technique. The short coming is, it requires more higher wall 

thickness when produce small nozzle pipe to reach the anti-leakage requirement.

how to arrange your budget while building utility pole factory?

As a sales, everyday, different clients inquiry from all over the world.
this thing like a doctor receive different patients everyday.
patients wait, but clients come and go(if they cannot hear good suggestions from us.) so it requires us to provide different solution for different clients!

after certain accumulation in utility pole machine market, we get the experience for providing the clients with best factory design, deal with the budget in a rational way.

for Russian and South Asian clients, we suggest advanced,automatic line to make them happy. donnot need to feel painful when you have to invest marge money, it brings you high production and longer machine life span in the future!

for African clients, we have simple and cost effective line.to take full advantage of the lower local labor cost, I can foresee a large amount of fortune for concrete pole in African market.


utility pole career must be a great feat worth us to press on!

need to pay attention for 4m cement pipe while producing

1200 × 4000 cement pipe mould is emerging in recent years,used for producing a 4 m length, diameter 1200mm flexible socket concrete pipe , the socket depth of the mold is completely designed and manufactured in accordance with national standards to ensure that the pipe size space reserved interface with diameter head installation.

to make perfect 4m cement pipe, belowing technique is required:

1. cement pipe mould requires sufficient rigidity, which is to ensure the mold  can still maintain the status after repeated turnover

2. The production quality:
 in addition to accurate size, the joint, detail design of the retaining ring is also very important. our factory produced cement pipe mold using a single slit mould, compared to the double-slit mould, its easy to remove, not eacy deformed.

According to the pipe making machine process characteristics and pipe size after molding , ring control bore size should be 3-5mm larger than a predetermined value  In addition, the cement pipe vertical cylinder mold should be avoided to prevent the adapter plate welded straight degree of deformation of the tube.

Cement concrete pipes belonging to certain  impermeability  concrete. According to the characteristics of suspended roller molding process, with the concrete mix design, the sand rate higher than ordinary concrete 2% to 6%, so have enough stone mortar filled the gap, to achieve a higher density. Usually for hanging roller machine ,concrete sand was 30% to 40%. Construction by the test match, for C30 concrete, we use the mix (cement: sand: stone: water) is 1: 2.25: 4.00: 0.39, the work of 27 degrees, 36% sand.

Due to low water-cement ratio of cement concrete pipes, gravel aggregate and often be used, not easy to disperse evenly when stirring, for these reasons, we have chosen to compulsory mixer in the construction, and an appropriate extension of stirring constantly, usually from 2 ~ 3min, while strictly control aggregate weighing accuracy. But in the actual operation, taking into account the quality of appearance after forming tube, usually for the first time, more dilute slurry mix slump controlled between 2 ~ 4cm.

12m concrete pole producing process&machine

Electric pole making machine, namely centrifugal machine, is consist of :the base, roller, bearing, motor, control cabinet and the drive shaft .centrifugal machine is is the key equipment to make prefabricated cement poles . for the connecting shaft, our centrifuge machine adopt  pass pole shaft to avoid stress concentration brought  by shaft diameter change , resulting in "off-axis" phenomenon; The centrifuge machine wheel wall is removable, making centrifuge repair and maintenance more convenient.

Centrifugal process time is 16min ~ 18min, and now some companies will produce the pole time by centrifugation for 12min, which is the min time limit for centrifugal process, to get qualified products must develop rigorous process system , which should account for 40% of all high-speed centrifugation process, 

in order to shorten the centrifugal speed must be adjusted so that the installation of centrifuges accuracy standard, poles precision molds to meet the requirements, to meet the requirements of high-speed operation, improve the density of concrete, shortening the discharging time excess water, centrifugation steel trace appears and allowed jitter is inevitable, such as the beat amplitude is beneficial settling and compacting the concrete, over this range is not normal in the range 5mm ~ 10mm, or even very harmful.

Pole molding system is based on low-speed centrifuge speed → → → high speed of speed.

1) Low-speed (slow): When the concrete slump <when ​​6cm, its speed of 100rpm ~ 120rpm, rotating 1.5min ~ 2min.

2) Medium: mainly to make equipment and products from shock and vibration impacts, while ensuring discharge excess water slowly and gradually compacting concrete, rotate 1.5min ~ 2min.

3) High speed: the speed of rotation of the molding to ensure discharge excess water in sufficient centrifugal force, and ensure the correct shape speed not less than 360rpm, time 7min ~ 8min

800-1200 × 2000 hanging roller cement pipe making machine

800-1200 × 2000 hanging roller cement pipe making machine

this is our company's flagship product, the aircraft frame assembled from 8,10mm steel whole mosaic; thick-walled seamless steel pipe roller selection, wall thickness of not less than 30 mm; activities by 12mm steel door frame assembly, electromagnetic speed motor selection tier companies produce copper motors, distribution cabinets are used in electrical Chint, Tengen brand, large overall weight, enough material.

In the suspended roller cement pipe machine design process, we mainly follow the following principles: (1) Under the premise of production to meet customer requirements, as much as possible for customers to reduce investment, allowing customers to achieve investment and maximize profit. (2) carefully check all connections critical dimensions to ensure a smooth installation. (3) roller shaft diameter, stiffness, operating speed, chassis stiffness and tube feeding agencies should meet the technical requirements, and comply with design standards.

1. Design:rollers

Hanging roller cement pipe machine rollers are suspended roller device package of the most important parts, but also wearing parts, therefore, the roller device design has become the key to the whole. Damaged rollers are the following situations: Front fracture (1) rollers. Bending deformation (2)over deformed rollers. (3) due to wear tapered head, result in a tapered head gantry and activities taper sleeve with the gap becomes larger.

For the above circumstances, in the design, manufacture rollers, we have taken the following measures:

 (1) selection of roller walled seamless steel pipe wall thickness is generally not less than 30 mm. 

(2) the junction roller front bar and seamless steel tubes, steel bar stretching the length of less than 200 mm. When the next round steel pipe inner diameter larger than the outer diameter of the case, in order to prevent the front bumper fracture occurred in the round uniform welding 6-

8 30 mm thick steel, and steel lathe after interference fit and steel with steel pipe welding, and finally install the front flange. Flange welded and seamless steel pipe in the round, round flange at the weld reinforcement and tendons. 

(3) In order to adjust the length of the roll shaft assembly, we added a 3-4 spindle head in front of the presser roller ring. When the taper head wear, taper head can be removed, head pressure adjustment shaft installation position of the ring, to achieve the purpose of adjusting the overall length of the roll axis, ensuring the smooth operation of equipment. 

(4) For larger loads suspended roller lever, roller bearings are generally chosen to double row spherical roller bearings, can achieve the purpose of self-aligning roller shaft. Effectively extending the life of the roller shaft.

2. Part of the conveyer belt feeding mechanism, and we chose the oil-cooled electric drum, which has a simple and compact structure, small footprint area, sealed, easy maintenance, safe and reliable operation, easy to realize the advantages of centralized control. In addition, in order to reduce the manufacturing cost of the equipment, and enhance the stability of the conveyor is running,  inside of the front legs of the design of the main frame, we use conveyor support bracket guide wheels and other devices installed.

what's the concrete pole machine production line ?

Equipment List for concrete pole making machine.

(what's the necessary equipment to make the electric pole?)
No. Name and Specification
1 steel concrete pole mould
2 plate anchorage
3 Centrifuge machine
4 Speed regulating motor (37KW)
5 Microcomputer motor control cabinet
6 Wire tensioning machine (60T)
7 Tensioning rod
8 Head button machine
9 Steel bar straightening&cutting machine
10 Mould close air pressure gun
11 Air compressor 10m3
12 Concrete mixing station
13 10T Double beam traveling crane
14 5T Double beam traveling crane
15 Curing pool
16 5T Steam boiler
22 Distribution control cabinet

any other technique questions,pls contact: rebecca@sdcicq.com

skype:rebecca.liunn