320 mm Pneumatic Cylinder: Force Chart and Air Consumption

A 320 mm bore pneumatic cylinder (≈ 12.60 in) has a Ø63 mm rod and, per the Fenitsa catalogue, pushes 4,823 kg and pulls 4,638 kg at 6 bar (87 psi). Its piston area is 804.2 cm².

Typical uses: heavy pressing with the largest catalogue bore, large gates and slides, high force in food and clean areas. Standard strokes 50–500 mm; any stroke on request up to 2,800 mm for Ø320.

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320 mm Pneumatic Cylinder: Force Chart and Air Consumption

Force Chart by Pressure

Theoretical values; catalogue 6 bar figures allow for friction.

320 mm Pneumatic Cylinder: Force Chart and Air Consumption
Pressure	Push (N)	Push (kgf)	Push (lbf)	Pull (kgf)
4 bar (58 psi)	32,170	3,280	7,232	3,153
6 bar (87 psi)	48,255	4,921	10,848	4,730
8 bar (116 psi)	64,340	6,561	14,464	6,307
10 bar (145 psi)	80,425	8,201	18,080	7,883

Catalogue at 6 bar: push 4,823 kg, pull 4,638 kg.

Air Consumption (6 bar, double stroke)

Free air in litres.

Air Consumption (6 bar, double stroke)
Stroke (mm)	Air (L)
50	54.6
100	109.2
200	218.4
300	327.6
500	546.0

Series and Mountings in This Bore

FMY (ISO 15552, magnetic piston, adjustable cushioning), PNS-PNSY (CETOP RP 53P) and PMB; every series also as double rod (C), tandem (T) and two-position (D). Mountings: clevis, flange, foot, trunnion, rod-end clevis and spherical eye.

Application Example

To move a 2,050 kg load at a 50 % load ratio (usual for moving loads), a Ø320 cylinder needs about 5.0 bar (73 psi).

Compared with Neighbouring Bores

Compared with Neighbouring Bores
Bore	Rod	Push 6 bar (kg)	Pull 6 bar (kg)
Ø250	Ø50	2,944	2,827
Ø320 ◄	Ø63	4,823	4,638

Against Ø250, the Ø320 bore has 64 % more piston area and pushes 1,879 kg more at 6 bar; its pull-to-push ratio is 96 %.

Frequently Asked Questions

How much force does a 320 mm pneumatic cylinder produce?

Per the catalogue, 4,823 kg push and 4,638 kg pull at 6 bar; at 10 bar the theoretical push is 8,201 kgf (18,080 lbf).

What rod size does a 320 mm cylinder have?

Ø63 mm (2.48 in).

How much air does a 320 mm cylinder use?

About 109.2 litres of free air per double stroke for a 100 mm stroke at 6 bar.

What load can a Ø320 cylinder move at 6 bar?

About 2,460 kg as a moving load at a 50 % load ratio; for static clamping up to the catalogue 4,823 kg.

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Bore, rod, stroke, working pressure, mountings and quantity — or a drawing or photo of the cylinder you want to replace. Our engineers reply with a technical proposal and a quotation.

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