1267 1268

Springs

4－Ma

Mb(M6×8)

2－Ma

Mb(M8×12)

D

0－

0.2

φ3

Q

dJ

(H－Q)±0.25

L±0.3

H S: Stroke

GAS SPRINGS FOR PLASTIC MOLD HOLDER FOR GAS SPRING

■Allowable eccentricity0.3/100mm

■Lubrication methodOil-free

Part Number

MBPGS－A 38－125

■MBPGS－A/MBPGS－B Load characteristic graph ① D38

1800

2000

2200

2400

2600

2800

3000

3200

3400

0 50 100 150 200

MBPGS－A38－160MBPGS－A38－125

MBPGS－B38－100

MBPGS－A38－100

MBPGS－B38－125MBPGS－B38－160 MBPGS－B38－200

MBPGS－A38－200Load［

N ］

Stroke ［mm］

※�The above load characteristic graph is the value at 20℃. When used at 100℃, the load increases by approx. 24%.

Part Number

MBPGS－H 38－40

■MBPGS－A/MBPGS－B Load characteristic graph② D45 ■MBPGS－A/MBPGS－B Load characteristic graph③ D50

※The above load characteristic graph is the value at 20℃. When used at 100℃, the load increases by approx. 24%. ※The above load characteristic graph is the value at 20℃. When used at 100℃, the load increases by approx. 24%.

■�How to Assemble

Upper ejector plate Lower ejector plate

Movable mounting plate

40000 50 100 150 200

4500

5000

5500

6000

6500

7000

7500

MBPGS－A45－100

MBPGS－B45－100

MBPGS－A45－125

MBPGS－B45－125

MBPGS－A45－160

MBPGS－A45－200

MBPGS－B45－200

MBPGS－B45－160

5000

6000

7000

8000

9000

10000

11000

0 50 100 150 200 250

MBPGS－A50－200

MBPGS－A50－160

MBPGS－A50－125

MBPGS－B50－100MBPGS－B50－200

MBPGS－A50－100

MBPGS－B50－125

MBPGS－B50－160

MBPGS－B50－250

MBPGS－A50－250

Stroke ［mm］

Load［

N ］

Stroke ［mm］

Load［

N ］

V Initial load and max. load are values at 20℃.・ Load{kgf}＝Load N×0.101972 ・ Load{N}＝Load kgf×9.80665・ Nitrogen gas sealing pressure kgf/cm2＝MPa×10.1972 MPa＝kgf/cm2×0.0980665V Be sure to mount the gas spring for plastic mold with two bolts using the mounting hole of Ma.V In case of D38, the tap for mounting is processed in two pitches, i.e. J18 and J25.

Weight(kg) D d L H Tap for mounting

Ma J Q Load N {kgf} ［20℃］ StrokeS

Part Number U/PriceInitial load Max. load Type D－S 1～9

0.85

38 20

250 150

M6× 8 1825 2 2000

{204}2700{275}

100

MBPGS－A

38－100 0.93 300 175 125 38－125 1.21 370 210 160 38－160 1.37 450 250 200 38－200 1.76

45 25

285 185

M8×12 20 2 4500{459}

6500{663}

100 45－100 1.98 335 210 125 45－125 2.28 405 245 160 45－160 2.60 485 285 200 45－200 2.31

50 30

295 195

M8×12 20 3 5500{561}

8800{897}

100 50－100 2.59 345 220 125 50－125 2.95 415 255 160 50－160 3.32 495 295 200 50－200 3.78 595 345 250 50－250 0.85

38 20

250 150

M6× 8 1825 2 2500

{255}3350{342}

100

MBPGS－B

38－100 0.93 300 175 125 38－125 1.21 370 210 160 38－160 1.37 450 250 200 38－200 1.76

45 25

285 185

M8×12 20 2 5000{510}

7250{739}

100 45－100 1.98 335 210 125 45－125 2.28 405 245 160 45－160 2.60 485 285 200 45－200 2.31

50 30

295 195

M8×12 20 3 6500{663}

10400{1061}

100 50－100 2.59 345 220 125 50－125 2.95 415 255 160 50－160 3.32 495 295 200 50－200 3.78 595 345 250 50－250

V For MBPGS－H38, the bolt hole for mounting gas spring is processed by two pitches: P1＝18 and P1＝25.

L L1 D D1 P d d1 T P1 d2 d3 T1P

Socket head cap screwsPart Number

LU/Price

Type No. 1～9

40 25

80 40 57 9 14 9 1825 7 12 7

M 8－35 4M6－20×2

MBPGS－H

38

40

50 35 M 8－50 4 50

55 40 M 8－55 4 55

45 30

90 47 68 11 17 11 20 9 14 9

M10－45 4M8－15×2 45

45

55 40 M10－55 4 55

65 50 M10－65 4 65

55 40

100 52 75 13 20 13 20 9 14 9

M12－55 4M8－15×2 50

55

65 50 M12－65 4 65

75 60 M12－75 4 75

S Fe3O4 (Black Oxide)

MBPGS－H

D1 D

T

T1±0.

1P

±0.

1P1

±0.

1P

±0.

1P1

d3 d2

d1

2－C1 L1±0.2

L ±0.2

＋0.

50

－0.

50

d

φ5

or le

ss

● D45・50● D38

V If used outside the stroke range S, gas release occurs and piston rod becomes unable to return.Be sure to use within the stroke range so that it will not come into contact with overstroke check pin.

V Mb cannot be used for mounting.

Cylinder body

S Fe3O4 (Black Oxide)V Temperature to be used: 0～100℃

Piston rod

S Nitriding＋Barrel polishingV A center hole may be left on the tip.

Nitrogen gas sealing pressure MPa{kgf/cm2}

MBPGS－A38 6.4{ 65}45 9.2{ 94}50 7.8{ 80}

MBPGS－B38 8.0{ 82}45 10.2{104}50 9.2{ 94}

V Sealing pressure is the value under 20℃.

MBPGS－AMBPGS－B

● D45・50● D38

R SCM440 comparable R SACM645Q 1000HV～(surface) R SS400

QuotationQuotation

QuotationQuotation

QuotationQuotation

QuotationQuotation

Quo

tati

on

Quo

tati

on

Quo

tati

on

Quo

tati

on

V Non JIS material definition is listed on P.1351 - 1352