BIG BIN SERIES

M40 - M48 (131’ - 157’) DIAMETER

Capacities to 2.0 million bushels

Higher peak load ratings

Larger roof decks

PRODUCT LITERATURE

Big Bin Series Brochure

Roof System Wall System Bin Entry Options Accessories Specifications Photos

Roof System

UNMATCHED ROOF SYSTEM

CLEAR SPAN ROOF SYSTEM

The Big Bin® Series offers an enormous, clear span roof system designed for strong winds, snow loads, temperature cables and high volume filling equipment. The 30° roof allows for optimum filling, and the huge deck at the peak easily accepts today’s ever larger catwalks and higher capacity filling equipment.

The 11” or 15” deep continuous I-beam rafters from eave to peak provide a strong framework for roof loads. This roof system is capable of supporting uniform loads of 50,000-70,000 lbs. (depending on model) at the peak and 40 lbs. per sq. ft. ground snow load.

INNOVATIVE ROOF SYSTEM

STRONG STANDING SEAM PANEL

System uses a “Standing Seam” panel to elevate the roof fasteners above the roof valley. The roof panels are attached to the roof skelton with standing seam roof straps.

RIGIDIZED ROOF PANELS

Roof panels are rigidized for longer life and attach with numerous bolts to the wall system through a continuous angle at the eave. This prevents panels from tearing loose in high wind conditions.

EXTRA HEAVY-DUTY TENSION PIPE BRINGS ALL MAJOR COMPONENTS OF THE BIN TOGETHER These massive pipes (up to 4½” diiameter) connect the rafters to the wall panels and stiffeners for outstanding strength at this critical location. This full circle ring at the eave stabilizes the roof and walls under all loading conditions and provides unmatched strength in both tension and compression situations, and provides support of non-uniform loads created by snowdrifts, high winds and earthquake forces.
LARGE ROOF DECK IMMENSE 13’ 4” DIAMETER DECK The fill opening can easily accommodate up to 4’ diameter spouting for maximum flexibility in choosing your fill equipment.

EXTRA HEAVY-DUTY TENSION PIPE

BRINGS ALL MAJOR COMPONENTS OF THE BIN TOGETHER

These massive pipes (up to 4½” diiameter) connect the rafters to the wall panels and stiffeners for outstanding strength at this critical location. This full circle ring at the eave stabilizes the roof and walls under all loading conditions and provides unmatched strength in both tension and compression situations, and provides support of non-uniform loads created by snowdrifts, high winds and earthquake forces.

LARGE ROOF DECK

IMMENSE 13’ 4” DIAMETER DECK

The fill opening can easily accommodate up to 4’ diameter spouting for maximum flexibility in choosing your fill equipment.

Wall System

UNIQUELY DESIGNED WALL SYSTEMS

STURDY, LONG LASTING WALL SYSTEM

The Behlen flat-sided (trapezoidal) corrugation uses a flat surface for bolt-to-wall panel connection. This flat-sided configuration provides for maximum strength while giving a superior weather seal where the bolt, washer, and wall sheet connect. The Grade 8.2 bolts are formed with a pocket in the head which helps to hold the washer in place and channel moisture away, providing another level of protection for the grain inside. Behlen bin bolts are coated with JS1000™ extreme life plating, providing superior corrosion protection.

SUPERIOR PANEL STRENGTH

The vertical seam lines have an extensive overlap with up to seven rows of bolts. The precision manufactured panels speed assembly resulting in lower erection cost.

STIFFENERS WITH EXCEPTIONAL LOAD CARRYING CAPABILITIES

The Behlen hat-shaped stiffeners provide superior resistance to grain loads. Each stiffener is formed from a single piece of steel up to 5/16” thick. This use of thick, solid steel eliminates the need to laminate stiffener material. Each of the stiffeners supports the next with a load bearing plate to ensure positive load transfer into the concrete foundation. The use of three heavy duty stiffeners per wall sheet gives Behlen bins the ability to be cleaned with a single pass sweeping operation.

Bin Entry Options

STANDARD CRAWL DOOR

The standard 27” square crawl door is located in the second ring. This door comes with an outer locking door for security and weather protection. The inner door is made from heavy duty steel to secure the grain inside.

OPTIONAL WALK THROUGH DOOR

The optional two-ring walk door offers additional east of entry to the bin interior. It comes with inner and outer doors with over 2’ wide by over 5’ high opening.

OPTIONAL ACCESS DOOR

Behlen offers an equipment door for drive through access. It features a heavy duty structural frame with both inner and outer doors. The door has hinged doors providing an easy opening.

Accessories

GOOSENECK ROOF VENT

Behlen’s 1.56 sq.ft. opening gooseneck vents used with pre-punched opening allow for fast assembly.

PRE-PUNCHED ROOF VENT OPENING

A pre-punched opening in the roof panel has a raised lip for improved weather protection.

LOW PROFILE ROOF VENT

Behlen exclusive low profile roof vents set down close to the roof panel to reduce the potential for wind damage. Excellent choice in port facilities or high wind lodations. Available in 3.13 sq. ft. openings, reducing the number of vents.

STIFFENER EXTENSIONS

Stiffener extensions are offered to transfer loads from the base of the stiffener columns to the bottom of customer installed aeration tunnels. Available in heights of 12¼”, 11¾, and 7¾”.

SAFETY RAIL AND ROOF STAIRS

Optional peak safety rail encloses the flat peak area for added safety protection. The Behlen hot-dipped galvanized roof stairs come in pre-assembled sections. The mounting brackets and handrails are easilty attached.

STANDARD OUTSIDE LADDERS

The standard outside ladders come with a double wide eave and rest platforms, along with hoop and strap safety cage.

STANDARD GRADE WALL STAIRS

Our standard light duty wall stairs provide an economical alternative.

Specifications

Model (dia. x eave hi In meters)

Eave Height (ft/in)

Overall Height (ft/in)

Overall Height (meters)

Bushels* (maximum)

Metric Tons* (maximum)
Wheat	Corn	Rice

Cubic Meters

BIG BIN SERIES - Diameter 40 Meters (131' 3")

40x9

29' 8"

64' 8"

19.76

475,221

13,395

12,061

9,723

15,797

40x10

32' 11"

68' 0"

20.76

513,013

14,461

13,020

10,495

17,054

40x11

36' 3"

71' 3"

21.76

550,805

15,527

13,979

11,267

18,311

40x12

39' 6"

74' 8"

22.76

588,597

16,593

14,938

12,039

19,568

40x13

42' 10"

77' 11"

23.76

626,389

17,659

15,897

12,811

20,825

40x14

46' 1"

81' 2"

24.76

664,181

18,725

16,856

13,583

22,082

40x15

49' 4"

84' 6"

25.76

701,973

19,791

17,815

14,355

23,339

40x16

52' 8"

87' 8"

26.76

739,765

20,857

18,774

15,127

24,596

40x17

55' 11"

91' 0"

27.76

777,557

21,923

19,733

15,899

25,853

40x18

59' 3"

94' 4"

28.76

815,349

22,989

20,692

16,671

27,110

40x19

62' 6"

97' 7"

29.76

853,141

24,055

21,651

17,443

28,367

40x20

65' 9"

100' 11"

30.76

890,933

25,121

22,610

18,215

29,624

40x21

69' 0"

104' 2"

31.76

928,725

26,187

23,569

18,987

30,881

40x22

72' 4"

107' 5"

32.76

966,517

27,253

24,528

19,759

32,138

40x23

75' 8"

110' 9"

33.76

1,004,309

28,319

25,487

20,531

33,395

40x24

78' 11"

114' 0"

34.76

1,042,101

29,385

26,446

21,303

34,652

40x25

82' 2"

117' 3"

35.76

1,079,893

30,451

27,405

22,075

35,909

BIG BIN SERIES - Diameter 44 Meters (144' 4")

44x9

29' 8"

68' 7"

20.91

591,236

16,671

15,004

12,086

19,659

44x10

32' 11"

71' 10"

21.91

636,964

17,960

16,164

13,021

21,180

44x11

36' 3"

75' 2"

22.91

682,692

19,250

17,325

13,956

22,700

44x12

39' 6"

78' 5"

23.91

728,421

20,539

18,485

14,891

24,221

44x13

42' 10"

81' 8"

24.91

774,149

21,828

19,645

15,825

25,741

44x14

46' 1"

85' 0"

25.91

819,877

23,118

20,806

16,760

27,262

44x15

49' 4"

88' 3"

26.91

865,606

24,407

21,966

17,695

28,782

44x16

52' 8"

91' 6"

27.91

911,334

25,697

23,127

18,630

30,303

44x17

55' 11"

94' 10"

28.91

957,062

26,986

24,287

19,565

31,823

44x18

59' 3"

98' 1"

29.91

1,002,790

28,275

25,448

21,316

33,344

44x19

62' 6"

101' 4"

30.91

1,048,519

29,565

26,608

21,434

34,864

44x20

65' 9"

104' 8"

31.91

1,014,247

30,854

27,769

22,369

36,385

44x21

69' 0"

107' 11"

32.91

1,139,975

32,144

28,929

23,304

37,905

44x22

72' 4"

111' 3"

33.91

1,185,703

33,433

30,090

24,239

39,426

44x23

75' 8"

114' 6"

34.91

1,231,432

34,723

31,250

25,174

40,946

44x24

78' 11"

117' 9"

35.91

1,277,160

36,012

32,411

26,109

42,467

BIG BIN SERIES - Diameter 48 Meters (157' 6")

48x9

29' 8"

72' 4"

22.06

722,894

20,391

18,346

14,771

24,046

48x10

32' 11"

75' 7"

23.06

777,315

21,925

19,727

15,884

25,855

48x11

36' 3"

78' 11"

24.06

831,736

23,459

21,100

16,997

27,664

48x12

39' 6"

82' 2"

25.06

886,157

24,993

22,489

18,110

29,473

48x13

42' 10"

85' 6"

26.06

940,578

26,527

23,870

19,223

31,282

48x14

46' 1"

88' 9"

27.06

994,999

28,061

25,251

20,336

33,091

48x15

49' 4"

92' 0"

28.06

1,049,420

29,595

26,632

21,449

34,900

48x16

52' 8"

95' 4"

29.06

1,103,841

31,129

28,013

22,262

36,709

48x17

55' 11"

98' 7"

30.06

1,115,262

32,663

29,394

23,675

38,518

48x18

59' 3"

101' 10"

31.06

1,212,683

34,197

30,775

24,798

40,327

48x19

62' 6"

105' 2"

32.06

1,267,104

35,731

32,156

25,901

42,136

48x20

65' 9"

108' 5"

33.06

1,321,525

37,265

33,537

27,014

43,945

48x21

69' 0"

111' 9"

34.06

1,375,946

38,799

34,918

28,127

45,754

48x22

72' 4"

115' 0"

35.06

1,430,367

40,333

36,299

29,240

47,563

48x23

75' 8"

118' 3"

36.06

1,484,788

41,867

37,680

30,353

49,371

48x24

78' 11"

121' 7"

37.06

1,539,209

42,401

39,061

31,466

51,180

TYPICAL GRAIN DENSITIES:

Wheat approximately 800 kg/m3 (50 lb/ft3)
Corn approximately 720 kg/m3 (45 lb/ft3)
Rice approximately 580 kg/m3 (36 lb/ft3)

* Capacities based on bin filled to eave with grain peaked in roof area at 28 degree slope. Bushels based on 1.25 cubic ft./bu. Metric ton calculations assume wheat at 800 kb/cubic meter; corn at 720 kg/cubic meter and rice at 580 kg/cubic meters. All maximum capacities include a 6% compaction allowances as determined by the American Society of Agricultural Engineers (ASAE) standard S413.