Manufacturers and Suppliers of Conveyor and Bucket ...

NATIONAL CHAINS

NC

Manufacturers and Suppliers ofConveyor and Bucket Elevator Chains

Agriculture Milling & Edible Oils Industry

Other Quality Products Manufactured by National Chains

NC

CRANKED HEAVY DUTY CHAIN

BUCKETS

PANS

SCRAPPERS

HEAVY DUTY TRAM CHAIN RECLAIMER CONVEYOR CHAINS

SPROCKETS

DRAG SLATE - M STYLE STEEL BUSH CHAINFORGED LINK CHAIN

NCCreating a Chain of Excellence

1

INDEX

ABOUT US ....................................................................................................................................................................................... 2

Edible oils with standard applications .................................................................................................................................. 4

Forge Chains .................................................................................................................................................................................. 5

Material Specifications .............................................................................................................................................................. 5

Assembly Sequences ................................................................................................................................................................. 6

Scrapers ........................................................................................................................................................................................... 7

Flush Roller Box Scraper .......................................................................................................................................................... 8

Twin Trace Roller Chains .......................................................................................................................................................... 9

81x Chains ‘The Grain Chain’ ..............................................................................................................................................10

Scraper Chains as M series ................................................................................................................................................11

Scraper Chains as FV series ...............................................................................................................................................12

Hollow Pin Conveyor & BS4116 Solid .............................................................................................................................13

BS Hollow Pin Conveyor .........................................................................................................................................................14

BS K Attachments Integral ..................................................................................................................................................15

BS K Attachments Welded ..................................................................................................................................................16


2

ABOUT US

Product SpecialistAt National Chains we believe that true excellence lies in combining mind and machine – an approach

reflected not only in our superior quality chains, but also in our unique service standards. As specialists

in the supply of medium to heavy-duty conveyor and elevator chains, our client service includes expert

advisors - from quotation to delivery and after-sales service. Our uncompromising commitment to

excellence is driven by a management team with more than 30 years’ experience in the manufacture

and marketing of industrial chains.

Meticulous ManufacturingStandard or Tailored

Through our in-house manufacturing arm, Chain Connection, products are meticulously manufactured

to standard specifications using state-of-the art CAD/CAM technology. Manufacturing equipment

includes a range of eccentric and hydraulic presses - from 100 to 500 tons - CNC lathes, CNC milling.

The manufacturing process of all components and chains is marked by stringent quality control as to

be SABS ISO 9001 compliant.

If your required chain is not listed in our catalogues, please feel free to send us your requirements

so that we can manufacture a chain to suit your needs.


3

Quality Certified SteelAll our chains are manufactured from quality certified

steel, coded for traceability and where required, heat-

treated to offer the perfect combination of strength and

flexibility.

Competitive PricesAs a hands-on team of specialists, we can offer superior

products at highly competitive prices. No fat, just fact.

BBE AccreditedNational Chains is a Level 2 BEE company.

ApplicationsConveyor and elevator chains, buckets, sprockets and

guide rollers are manufactured for application in various

industries throughout Southern Africa such as:

• Coal Mining

• Diamond Mining

• Gold Mining

• Timber

• Cement

• Automotive

• Sugar

• Fertiliser

• Asphalt

• Steel, etc.

ABOUT US


4

Typical process layout of edible oils with standard applications


5

Forge Chains

Chain No. P mm

C mm

S mm

T mm

DIA mm

F mm

R mm

NC 1001 101.6 36 12 30 14 14 8

NC 1002 101.6 36 8 24 14 10 6

NC 2001 102 36 12 28 14 14 8

NC 2002 102 36 8 25 14 10 6

NC 3001 125 36 13 30 16 14 10

NC 4001 142 50 28 62 25 30 15

NC 4002 142 50 25 54 25 27 15

NC 4003 142 50 19 42 25 20 11

NC 6001 160 50 23 50 25 25 13

NC 8001 200 60 30 66 30 32 20

NC 8002 200 60 25 55 30 27 16

NC 9001 216 72 26 64 35 28 20

NC 9002 216 72 25 58 35 27 18

NC 10001 260 75 31 70 32 33 20

NC 10002 260 75 31 65 32 33 20

Material Specifications

Forge Link

C SI MN S P CR MO

20MnCR5 (Material No. 1.7147)

0.17 – 0.22 0.15 – 0.36 1.10 – 1.40 0.000 – 0.035 0.000 – 0.035 1.00 – 1.30 X

16MnCR5 (Material No. 1.7131)

0.14 – 0.19 0.15 – 0.35 1.00 – 1.30 0.000 – 0.035 0.000 – 0.035 0.80 – 1.10 X

C40 (Material No. 1.1186)

0.35 – 0.45 0.15 – 0.40 0.50 – 0.80 0.000 – 0.050 0.000 – 0.050 X X

42CrMo (Material No. 1.7225)

0.35 – 0.45 0.15 – 0.35 0.50 – 0.80 0.000 – 0.035 0.000 – 0.035 0.80 – 1.10 0.15 – 0.30

PinENG19 (709M40)

SS431 (Stainless Steel)

CirclipSt 37.2 (Material No. 1.0037)

SS 420 (Stainless Steel)SS 304 (Stainless Steel)


6

Assembly Sequences

BT1 BT2 BT3

T1 T2 T3

U1 U2 U3

C1 C2 C3

001 002 003

Flat scrapers

Square scrapers

Square scrapers“U” shape

Square scrapers“C” shape

Square scraperDouble “00” shape


7

ScrapersIMAGE DESCRIPTION APPLICATION

Link with square studHorizontal or slightly inclinedchain conveyors 5° / 10°

Link with flat studHorizontal or slightly inclinedchain conveyors 5° / 10°

Link with flat studand cleaner

Horizontal or slightly inclinedchain conveyors 5° / 10°

Link with square stud bent“U” form

Inclined chain conveyorsmax 25°

Link with square stud bent“C” form

Inclined chain conveyorsmore than 25°

Link with square stud bent“C” form with filling sheet

Inclined chain conveyorsmore than 25°

Link with square stud bentdouble “00”

Inclined and verticalchain conveyors

Link with square studdouble “00” with filling sheet

Inclined and verticalchain conveyors

Link with flat stud, shapedin “K” form

Horizontal and inclined chainconveyors up to 30°

Double chain with scrapingflat stud

Extractors and chainconveyors of various minerals

For information and queries, please contact us at [email protected]


8

Flush Roller Box Scraper

Chain NumberP

Breaking Load

Average Weight

RollersBushingsOutside

Diameter

Between Sidebars

SidebarsPins

DiameterOverall Width

Thickness Height

D2 D5 L S1 S2 H D6 F1 F2 IX

mm kN kN* Kg/m mm

NC SP43/0762/R1/BT 76.2 43 70 TBA 25.4 17 15 4 4 25 14 37 42 TBA*

NC SP43/1016/R1/BT 101.6 43 70 TBA 25.4 17 15 4 4 25 14 37 42 TBA*

NC SP75/1016/R1.5/BT 101.6 75 125 TBA 38.1 23.6 19 5 4 40 19 43 50 TBA*

NC SP75/1524/R1.5/BT 152.4 75 125 TBA 38.1 23.6 19 5 4 40 19 43 50 TBA*


9

Flight Bar Feeder

Chain NumberP

Breaking Load Per

Stand

Average Weight


Diameter

Between Sidebars

SidebarsPins

DiameterOverall Width

Thickness Height

D2 D5 L S1 S2 H D6 IX F1

mm kN kN* Kg/m mm

NC SP43/0762/12/14 76.2 43 70 TBA* 31.75 17 15 4 4 25 14 TBA IX +37

NC SP43/1016/12/14 101.6 43 70 TBA* 31.75 17 15 4 4 25 14 TBA IX +37

NC SP75/0762/12/14 76.2 75 125 TBA* 47.6 23.6 19 5 4 40 19 TBA IX +43

NC SP75/1016/12/14 101.6 75 125 TBA* 47.6 23.6 19 5 4 40 19 TBA IX +43

NC SP135/1016/12/14 101.6 135 200 TBA* 66.7 33 25.4 7 5 50 26.9 TBA IX +56

NC SP135/1524/12/14 152.4 135 200 TBA* 66.7 33 25.4 7 5 50 26.9 TBA IX +56


10

81x Chains ‘The Grain Chain’

Chain NumberP

Tensile Strength

Rollers Plate Pin Overall WidthDiameter Width Thickness Height Diameter Length

D2 L S1 S2 H D6 F1 IX

mm kN mm

NCR 81X 66.27 111 23 27 4 4 28.58 11.11 47.2 TBA*

NCR 81XH 66.27 176 23 27 7.94 5.56 31.75 11.11 58.2 TBA*

NCR 81XHH 66.27 186 23 27 7.94 7.94 31.75 11.11 63.5 TBA*


11

Scraper Chains as M series

DIN 8167

Chain NumberP

Breaking Load

D6 L S H D5 IX

mm kN mm

NC MR 56/063 63

56 10 24 4 30 15

Dim

ensi

on a

s R

equi

red

NC MR 56/080 80

NC MR 56/100 100

NC MR 56/125 125

NC MR 56/160 160

NC MR 80/080 80

80 12 28 5 35 18

NC MR 80/100 100

NC MR 80/125 125

NC MR 80/160 160

NC MR 80/200 200

NC MR 112/080 80

112 15 32 6 40 21

NC MR 112/100 100

NC MR 112/125 125

NC MR 112/160 160

NC MR 112/200 200

NC MR 160/100 100

160 18 36 7 50 25

NC MR 160/125 125

NC MR 160/160 160

NC MR 160/200 200

NC MR 160/250 250

NC MR 224/125 125

224 21 42 8 60 30NC MR 224/160 160

NC MR 224/200 200

NC MR 224/250 250

NC MR 315/160 160

315 25 48 10 70 36NC MR 315/200 200

NC MR 315/250 250

NC MR 315/315 315


12

Scraper Chains as FV series

DIN 8165

Chain NumberP

Breaking Load

D6 L S H D5 IX

mm kN mm

NC FVR 40/040 40

40 10 18 3 25 15

Dim

ensi

on a

s R

equi

red

NC FVR 40/063 63

NC FVR 40/080 80

NC FVR 40/100 100

NC FVR 63/063 63

63 12 22 4 30 18NC FVR 63/100 100

NC FVR 63/125 125

NC FVR 63/160 160

NC FVR 90/100 100

90 14 25 5 35 20NC FVR 90/125 125

NC FVR 90/160 160

NC FVR 90/200 200

NC FVR 112/100 100

112 16 30 6 40 22NC FVR 112/125 125

NC FVR 112/ 160 160

NC FVR 112/200 200

NC FVR 140/100 100

140 18 35 6 45 26NC FVR 140/125 125

NC FVR 140/160 160

NC FVR 140/200 200

NC FVR 180/125 125

180 20 45 8 50 30NC FVR 180/160 160

NC FVR 180/200 200

NC FVR 180/250 250

NC FVR 250/125 125

250 26 55 8 60 36NC FVR 250/160 160

NC FVR 250/200 200

NC FVR 250/250 250

NC FVR 315/160 160

315 30 65 10 70 42NC FVR 315/200 200

NC FVR 315/250 250

NC FVR 315/315 315


13

BS 4116 SOLID PIN

Chain NumberP

Working Load

Average Weight


Diameter

Between Sidebars

Sidebars Pins

Thickness Height DiameterThread

Diameter

D2 D5 L S1 S2 H D6 F3 B

mm kN kN* Kg/m mm

NC SP43/0762/WP 76.2 43 70 3.83 31.75 17 15 4 4 25 14 - -

NC SP43/1016/WP 101.6 43 70 3.71 31.75 17 15 4 4 25 14 - -

NC SP43/1270/WP 127 43 70 3.45 31.75 17 15 4 4 25 14 - -

NC SP43/1524/WP 152.4 43 70 3.29 31.75 17 15 4 4 25 14 - -

NC SP75/1016/WP 101.6 75 125 7.37 47.6 23.6 19 5 4 40 19 - -

NC SP75/1016/D3x4 101.6 75 125 8.05 47.6 23.6 19 5 4 40 19 40 16

NC SP75/1016/D3x6 101.6 75 125 7.65 47.6 23.6 19 5 4 40 19 40 16

NC SP135/1524/WP 152.4 135 200 13.81 66.7 33 25.4 7 5 50 26.9 - -

NC SP135/1524/D3x4 152.4 135 200 14.80 66.7 33 25.4 7 5 50 26.9 50 20

NC SP135/1524/D3x6 152.4 135 200 14.10 66.7 33 25.4 7 5 50 26.9 50 20


14

BS 4116 HOLLOW PIN

Chain NumberP

Working Load

Average Weight


Diameter

Hallow Pin Diameter

Between Sidebars

Sidebars Pins

Thickness Height Diameter

D2 D5 D7 L S1 S2 H D6

mm kN kN* Kg/m mm

NC HP55/1016/WP 101.6 55 110 6.85 47.5 23.6 13.2 19 5 4 40 19

NC HP110/1524/WP 152.4 110 300 12.91 66.7 33 20.2 25.4 7 5 50 26.9


15

BS K ATTACHMENTS INTEGRAL

Attac Min Outer Pitch

AttacMin Inner

Pitch

Transverse Pitch

Centre Hole

Diameter

Outer Holes

Diameter

Hole Pitch

Width Over Attac Inner/

Outer

Platform Length

Platform Height

Attac Thickness

Inner/OuterBreaking

Load Attac Type

P P1 B D D1 F K C A S

mm kN

76.2 76.2 76.2 10.5 9.2 22.2 106/115 43 19 3.8 43 K3

101.6 101.6 - 10.5 9.2 31.8 - 64 - - - K3

127 27 - 10.5 9.2 57.2 - 89 - - - K3

152.4 152.4 - 10.5 9.2 57.2 - 114 - - - K3

76.2 76.2 89 13.7 10.5 31.8 130/136 63.5 31.8 5.1/3.8 55 K3

101.6 101.6 - 13.7 10.5 31.8 - 63.5 - - 75 K3

152.4 152.4 - 13.7 10.5 57.2 - 114.5 - - - K3

101.6 101.6 108 15.3 - - 146/157 56 38 7.1/5.7 110 K1

101.6 101.6 - 15.3 12.2 31.8 - 56 - - 135 K3

152.4 152.4 - 15.3 12.2 57.2 - 107 - - - K3


16

BS K ATTACHMENTS WELDED

Attac Min Outer Pitch

AttacMin Inner

Pitch

Transverse Pitch

Centre Hole

Diameter

Outer Holes

Diameter

Hole Pitch

Width Over Attac Inner/

Outer

Platform Length

Platform Height

Attac Thickness

Inner/OuterBreaking

Load Attac Type

P P1 B D D1 F K C A S

mm kN

50.8 63.5 76.2 10.6 - - 102/118 19 19 4 43 K1

63.5 76.2 - 10.6 - - - 28 - - - K1

88.9 101.6 - 10.6 - - - 56 - - - K1

88.9 101.6 - - 9.2 31.8 - 56 - - - K2

114.3 127 - - 9.2 57.2 - 84 - - - K2

76.2 88.9 89 13.7 - - 125/136 35 31.8 5 55 K1

88.9 101.6 - 13.7 - - - 56 - - 75 K1

88.9 101.6 - - 10.5 31.8 - 56 - - - K2

114.3 152.4 - - 10.5 57.2 - 84 - - - K2

152.4 177.8 - - 10.5 88.9 - 127 - - - K2

127 127 108 15.3 - - 145/159 56 38 6 110 K1

127 127 - - 12.2 31.8 - 56 - - 135 K2

152.4 152.4 - - 12.2 57.2 - 84 - - - K2

177.8 177.8 - - 12.2 69.9 - 108 - - - K2

203.2 203.2 - - 12.2 88.9 - 127 - - - K2

228.6 228.6 - - 12.2 133.4 - 168 - - - K2


17

NOTES

Page Reference Product Comments / Requirements

Head Office224 Vonkprop Road, Samcor Park, Pretoria 0184

Tel: +(27) 12 803 2046Fax: +(27) 12 803 2036Email: [email protected]

Postal AddressPO Box 36760, Menlo Park, 0102, South Africa 0184

Mark Kuschke (Sales Director)Cell: +(27) 83 269 8926Email: [email protected]

Rudi Prinsloo (Sales Engineer)Cell: +(27) 73 425 3022Email: [email protected]

Richard’s Bay OfficeOffice B6, 95 Dollar Drive, Alton, Richards Bay, 3900

Tel: +(27) 35 789 0283Fax: +(27) 35 789 0283

Anthony Harrington (Technical Director)Cell: +(27) 82 825 3038Email: [email protected]

Alwyn Marx (Sales Engineer)Cell: +(27) 83 407 8811Email: [email protected]

NATIONAL CHAINS

NC

Manufacturers and Suppliers ofConveyor and Bucket Elevator Chains

ZambiaSub-Saharan Trade Hub Limited

Plot 2348/50 Kabelenga Road, Lusaka

Tel: +260 955 820 407/+260 967 820 407Email: [email protected]

Ronnie Nyambe (Director)Cel: +260 97 7820407Email: [email protected]

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