Hydraulic Cylinders
Made to Measure

ZD

Double acting cylinders

TK

Single acting cylinders
without stroke

TKA

Single acting cylinders
with stroke

TKA-FR

Single acting cylinders
with spring return

TEL-ZE

Telescope cylinders, single acting

Type Codes

1. Operating pressure

Operating pressure in MPa

2. Type of cylinder

DUE : Booster cylinder
GL : Rod cylinder
TEL : Telescope cylinder
TK : Plunger (ZE)
TKA : Plunger (ZE) with stop
TKA-FR : Plunger (ZE) with stop and spring return
ZE : Single acting
ZD : Double acting

3. Mounting method

BK : Piston rod turned spherically
Ga : Gab on both sides (with drill hole)
GaB : Gab on base (with drill hole)
GaS : Gab on rod (with drill hole)
GIK : Internal screw thread on piston rod
GAK : Thread on piston rod
F : Flange on both sides
FB : Flange on base
FK : Flange on top
S : Swivel eyes on both sides
SB : Swivel eyes on base
SK : Swivel eyes on piston rod
TA : Tangential base
Za : Tie rod
ZMI : Trunnion mounting

4. Finish

Bz : Bronze bush (pin diameter in mm)
GBO : Joint bearing on base (pin diameter in mm)
Ge : Joint bearing on both sides (pin diameter in mm)
GK : Joint bearing on piston rod (pin diameter in mm)
— : Drill hole only (pin diameter in mm)

5. Bar stock

Description not applicable by KS material 20MnV6-Cr
N 57 : N 57 Niro-Cr (1.4057-Cr) [material-no. with the last two figures]
N 62ge : N 62ge Niro grinded (1.4462 grinded) [material-no. with the last two figures]
V 25 : V25 heat treatable steel-Cr (1.72span class="shb-underline">25-Cr) [material-no. with the last two figures]

6. Treatment of rods

A : Armored
Cr : Hard chromium plated (lamination strength in µm)
H : Hardened
N : Nitrided

7. End-of-stroke damper

E : End-of-stroke damper on both sides
EB : End-of-stroke damper on base
Ek : End-of-stroke damper on top

8. Position measuring system

Wa : Position measuring system, external
Wi : Position measuring system, internal

9. Companion dimensions

M : Thread, metric
G : Thread, G-Withworth