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Home - Products (Components) - Formed Bellows - Product Lineup

Formed Bellows Lineup

Lineup by applicable flanges

MFJ MFK MFC MFP MFO
JIS Flanges KF Flanges CF Flanges Pipe Ends KF Flange,
Pipe End
MFJ MFK MFC MFP MFO

MFJ

MFJ

Dimensions in mm

Code Size A B1 B0 Thickness L1 L2 K Ae (cm2)
MFJ-020 JIS 20A 80 22.5 33.0 0.15 60 54-64 14.7 6.2
MFJ-025 JIS 25A 90 28.0 40.0 0.15 65 57 - 70 10.8 9.2
MFJ-040 JIS 40A 105 42.7 58.0 0.15 90 74 - 100 5.9 20.1
MFJ-050 JIS 50A 120 49.5 65.0 0.15 105 85 - 118 5.9 26.1
MFJ-065 JIS 65A 145 61.0 80.0 0.15 110 83 - 128 4.9 39.5
MFJ-080 JIS 80A 160 77.0 95.0 0.15 110 89 - 124 6.9 58.5
MFJ-100 JIS 100A 185 105.5 125.0 0.15 110 88 - 124 8.8 105.2
MFJ-125 JIS 125A 210 134.0 153.0 0.15 100 82 - 112 10.8 162.4
MFJ-150 JIS 150A 235 156.5 176.0 0.15 100 82 - 112 14.7 217.9

Dimensions in inch (*1 inch: 25.4mm (International Inch))

Code Size A B1 B0 Thickness L1 L2 K Ae (sq. inch)
MFJ-020 JIS 20A 3.15 0.89 1.30 0.006 2.36 2.13 - 2.52 83.9 0.96
MFJ-025 JIS 25A 3.54 1.10 1.57 0.006 2.56 2.24 - 2.76 61.7 1.43
MFJ-040 JIS 40A 4.13 1.68 2.28 0.006 3.54 2.91 - 3.94 33.7 3.12
MFJ-050 JIS 50A 4.72 1.95 2.56 0.006 4.13 3.35 - 4.65 33.7 4.05
MFJ-065 JIS 65A 5.71 2.4 3.15 0.006 4.33 3.27- 5.04 28.0 6.12
MFJ-080 JIS 80A 6.30 3.03 3.74 0.006 4.33 3.50 - 4.88 39.4 9.07
MFJ-100 JIS 100A 7.28 4.15 4.92 0.006 4.33 3.46 - 4.88 50.2 16.31
MFJ-125 JIS 125A 8.27 5.28 6.02 0.006 3.94 3.23 - 4.41 61.7 25.17
MFJ-150 JIS 150A 9.25 6.16 6.93 0.006 3.94 3.23 - 4.41 83.9 33.77

L1: Length (MIRAPRO standard), L2: Operation length, *K (pound/inch): Spring rate, Ae (sq.inch): Effective area
1N/mm =5.710 pound/inch
*If you require nonstandard length, please contact us.

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MFK

MFK

Dimensions in mm

Code Size A B1 B0 Thickness L1 L2 K Ae (cm2)
MFK-010 KF 10 30 22.5 33.0 0.15 105 96 - 111 9.8 6.2
MFK-016 KF 16 30 22.5 33.0 0.15 105 96 - 111 9.8 6.2
MFK-025 KF 25 40 22.5 33.0 0.15 105 96 - 111 9.8 6.2
MFK-040 KF 40 55 42.7 58.0 0.15 115 100 - 130 5.9 20.1
MFK-050 KF 50 75 49.5 65.0 0.15 125 110 - 140 5.9 26.0
MFK-063 KF 63 87 61.0 80.0 0.15 130 110 - 140 5.9 39.5
MFK-080 KF 80 114 89.7 109.0 0.15 150 130 - 170 5.9 77.8
MFK-100 KF 100 134 105.5 125.0 0.15 150 130 - 170 7.8 105.2

Dimensions in inch (*1 inch: 25.4mm (International Inch))

Code Size A B1 B0 Thickness L1 L2 K Ae (sq. inch)
MFK-010 KF 10 1.18 0.89 1.3 0.006 4.13 3.78 - 4.37 56.0 0.96
MFK-016 KF 16 1.18 0.89 1.3 0.006 4.13 3.78 - 4.37 56.0 0.96
MFK-025 KF 25 1.57 0.89 1.3 0.006 4.13 3.78 - 4.37 56.0 0.96
MFK-040 KF 40 2.17 1.68 2.28 0.006 4.53 3.94 - 5.12 33.7 3.12
MFK-050 KF 50 2.95 1.95 2.56 0.006 4.92 4.33 - 5.51 33.7 4.03
MFK-063 KF 63 3.43 2.4 3.15 0.006 5.12 4.33 - 5.51 33.7 6.12
MFK-080 KF 80 4.49 3.53 4.29 0.006 5.91 5.12 - 6.69 33.7 12.06
MFK-100 KF 100 5.28 4.15 4.92 0.006 5.91 5.12 - 6.69 44.5 16.31

L1: Length (MIRAPRO standard), L2: Operation length, *K (pound/inch): Spring rate, Ae (sq.inch): Effective area
1N/mm =5.710 pound/inch
*If you require nonstandard length, please contact us.

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MFC

MFC

Dimensions in mm

Code Size A B1 B0 Thickness L1 L2 K Ae (cm2)
MFC-034 CF 34 34 15.0 22.0 0.10 70 67 - 73 6.2 2.7
MFC-070 CF 70 70 28.0 40.0 0.15 82 74 - 90 8.8 9.2
MFC-114 CF 114 114 49.5 65.0 0.15 95 85 - 109 8.8 26.0
MFC-152 CF 152 152 89.7 109.0 0.15 110 95 - 125 8.8 77.8
MFC-203 CF 203 203 134.0 153.0 0.15 115 101 - 129 13.7 162.6

Dimensions in inch (*1 inch: 25.4mm (International Inch))

Code Size A B1 B0 Thickness L1 L2 K Ae (sq.inch)
MFC-034 CF 34 1.34 0.59 0.87 0.004 2.76 2.64 - 2.87 35.4 0.42
MFC-070 CF 70 2.76 1.1 1.57 0.006 3.23 2.91 - 3.54 50.2 1.43
MFC-114 CF 114 4.49 1.95 2.56 0.006 3.74 3.35 - 4.29 50.2 4.03
MFC-152 CF 152 5.98 3.53 4.29 0.006 4.33 3.74 - 4.92 50.2 12.06
MFC-203 CF 203 7.99 5.28 6.02 0.006 4.53 3.98 - 5.08 78.2 25.20

L1: Length (MIRAPRO standard), L2: Operation length, *K (pound/inch): Spring rate, Ae (sq.inch): Effective area
1N/mm =5.710 pound/inch
*If you require nonstandard length, please contact us.

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MFP

MFP

Dimensions in mm

Code Size A B1 B0 Thickness L1 L2 K Ae (cm2)
MFP-025 Pipe 20A 27.2 22.5 33.0 0.15 95 85 - 100 9.8 6.2
MFP-040 Pipe 32A 42.7 42.7 58.0 0.15 105 90 - 120 5.9 20.1
MFP-050 Pipe 50A 60.5 49.5 65.0 0.15 115 100 - 130 5.9 26.0
MFP-065 Pipe 65A 76.3 61.0 80.0 0.15 120 100 - 130 5.9 39.5
MFP-080 Pipe 80A 89.1 89.7 109.0 0.15 130 110 - 150 5.9 77.8
MFP-100 Pipe 100A 114.3 105.5 125.0 0.15 130 110 - 150 7.8 105.2

Dimensions in inch (*1 inch: 25.4mm (International Inch))

Code Size A B1 B0 Thickness L1 L2 K Ae (sq.inch)
MFP-025 Pipe 20A 1.07 0.89 1.30 0.006 3.74 3.35 - 3.94 56.0 0.96
MFP-040 Pipe 32A 1.68 1.68 2.28 0.006 4.13 3.54 - 4.72 33.7 3.12
MFP-050 Pipe 50A 2.38 1.95 2.56 0.006 4.53 3.94 - 5.12 33.7 4.03
MFP-065 Pipe 65A 3.00 2.40 3.15 0.006 4.72 3.94 - 5.12 33.7 6.12
MFP-080 Pipe 80A 3.51 3.53 4.29 0.006 5.12 4.33 - 5.91 33.7 12.06
MFP-100 Pipe 100A 4.50 4.15 4.92 0.006 5.12 4.33 - 5.91 44.5 16.31

L1: Length (MIRAPRO standard), L2: Operation length, *K (pound/inch): Spring rate, Ae (sq.inch): Effective area
1N/mm =5.710 pound/inch
*If you require nonstandard length, please contact us.

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MFO

MFO

Dimensions in mm

Code Size A B1 B0 Thickness L1 L2 K Ae (cm2)
MFO-025 KF25 x 20A - 22.5 33.0 0.15 100 90 - 105 9.8 6.2
MFO-040 KF40 x 32A - 42.7 58.0 0.15 110 95 - 125 5.9 20.1
MFO-050 KF50 x 50A - 49.5 65.0 0.15 120 105 - 135 5.9 26.0
MFO-065 KF63 x 65A - 61.0 80.0 0.15 125 105 - 135 5.9 39.5
MFO-080 KF80 x 80A - 89.7 109.0 0.15 140 120 - 160 5.9 77.8
MFO-100 KF100 x 100A - 105.5 125.0 0.15 140 120 - 160 7.8 105.2

Dimensions in inch (*1 inch: 25.4mm (International Inch))

Code Size A B1 B0 Thickness L1 L2 K Ae (sq.inch)
MFO-025 KF25 x 20A - 0.89 1.30 0.006 3.94 3.54 - 4.13 56.0 0.96
MFO-040 KF40 x 32A - 1.68 2.28 0.006 4.33 3.74 - 4.92 33.7 3.12
MFO-050 KF50 x 50A - 1.95 2.56 0.006 4.72 4.13 - 5.31 33.7 4.03
MFO-065 KF63 x 65A - 2.40 3.15 0.006 4.92 4.13 - 5.31 33.7 6.12
MFO-080 KF80 x 80A - 3.53 4.29 0.006 5.51 4.72 - 6.30 33.7 12.06
MFO-100 KF100 x 100A - 4.15 4.92 0.006 5.51 4.72 - 6.30 44.5 16.31

L1: Length (MIRAPRO standard), L2: Operation length, *K (pound/inch): Spring rate, Ae (sq.inch): Effective area
1N/mm =5.710 pound/inch
*If you require nonstandard length, please contact us.

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