Teknik Perhitungan Belt Conveyor agar Memahami perhitungan dasar conveyor belt akan memastikan desain conveyor Anda akurat dan tidak terlalu banyak menuntut pada sistem Anda.

Legenda Perhitungan Conveyor
B: Sinus sudut kemiringan
C: Jarak dari pulley ke pulley (inci)
D: Diameter Pulley penggerak (inci)
d: Diameter Pulley tail (inci)
E: Ketegangan efektif (lbs.)
E1: Tegangan sisi kendur (lbs.) E2: Tegangan sisi yang kencang (lbs.)
F: Koefisien gesekan (Lihat Tabel # 1)
G1: Beban per kaki persegi (lbs.)
G2: Beban per jam (lbs.)
HP: Tenaga kuda
K: Faktor Penggerak – lihat tabel # 2

L: Panjang Belt (inci)
M: Berat Belt Keseluruhan
P: Berat produk (lbs.)
RPM: Revolusi per menit
S: Kecepatan Conveyor per menit
T: Ketegangan Operasi PIW (lbs.)
W: Berat Belt(inci)

Teknik Perhitungan Belt Design Umum

Menghitung Belt Length

When the head and tail pulley are the same size: L=(D+d)/2 x 3.1416+2C
When one pulley is larger than the other pulley: L=(D+d)/2 x 3.1416+2C+(D-d)2/4c

Cara Menghitung Belt Speed

Expressed in feet per minute (FPM)

S=D x RPM x .2618 x 1.021

Cara Mengetahui Belt Load

At one time when the load is known per square foot: P= G1 x C(in feet)x W (in feet)
At one time when load is known by pounds per hour: P=G2/(S x 60) x C(in feet)

Mengukur Kekuatan Horsepower

Level Conveyors: HP=(F x S x (P+M))/33,000
Inclined Conveyors: HP=((P x B)+(P+M)x F x S)/33,000

Effective Tension
Pull needed to move belt and load horizontally: E= F x (P+M)

Tight Side Tension
Total tension to move belt and load horizontally: E2= E+E1

Slack Side Tension
Additional tension required to prevent slippage on drive pulley: E1=E x K

Operating Tension
Determines the working strength of the belt to handle the job on per inch of width basis: T= E2/W

The Coefficient of Friction

BeltSteel of AluminumMetal Rollers
Friction surface on pulley side.30 to .35.10 to .15
Bare duck on pulley side.20 to .25.10 to .15
Cover on pulley side.50 to .55.10 to .15

The Drive Factor “K”

Belt wrap on drive pulleyScrew Take-UpGravity Take-Up
180°Bare: 1.6  Lagged: 1.0Bare: .84  Lagged: .50
220°Bare: 1.2  Lagged: .6Bare: .62  Lagged: .35
240°Bare: 1.0  Lagged: .5Bare: .54  Lagged: .30