Chrome plated rod and induction hardened chrome rod
Ø10-Ø220 hard chrome plated rod and Ø8-Ø155 induction hardened chrome rod, cut to length.
The surface of the cylinder rod determines seal life: a scratched or dented chrome layer makes even the best seal leak in a short time. We supply the chrome rod we use in our own hydraulic cylinder production, cut to length, to companies that build and overhaul cylinders; we select the rod diameter according to load, stroke and mounting style, together with a buckling calculation. We ship chrome plated rod from stock anywhere in Türkiye and abroad, and also sell it through our online store hidroticaret.com (Turkish).
Types
Hard chrome plated rod
Drawn steel bar with a hard chrome plated surface. The plating reduces friction and wear and prevents corrosion; the standard in general purpose cylinders.
Induction hardened chrome rod
The steel beneath the plating is induction hardened; it resists impact, scratching and denting. Preferred in cylinders for construction machinery, refuse trucks and hydraulic breakers.
Product images: hidroticaret.com.
How to select
Rod diameter is most often determined by buckling, not by load. In a long-stroke cylinder working in push, a thin rod bends at a load far below what the pressure could carry; so the diameter is calculated together with the stroke and the mounting style at both ends. You can also run the calculation yourself in our hydraulic calculators.
The smoothness of the plating is the running surface for the wiper seal and the rod seal. The rod must be protected from impact during handling, cutting and assembly; a scratched rod cuts the seal in a short time. A rod with scratches or corrosion marks is replaced with a new one during overhaul.
In cylinders that take impacts and work in dust and stone, surface hardness is decisive; in these applications induction hardened rod also hardens the steel beneath the plating and provides resistance to denting.
The rod is supplied cut to length. Diameter, length and quantity are all we need; for cylinder production we can also machine and thread the rod end in our workshop.
Weight and cross-sectional area by rod diameter
| Rod diameter | Weight | Cross-sectional area |
|---|---|---|
| Ø20 mm | 2.47 kg/m | 3.1 cm² |
| Ø25 mm | 3.85 kg/m | 4.9 cm² |
| Ø30 mm | 5.55 kg/m | 7.1 cm² |
| Ø36 mm | 7.99 kg/m | 10.2 cm² |
| Ø40 mm | 9.86 kg/m | 12.6 cm² |
| Ø45 mm | 12.48 kg/m | 15.9 cm² |
| Ø50 mm | 15.41 kg/m | 19.6 cm² |
| Ø56 mm | 19.33 kg/m | 24.6 cm² |
| Ø60 mm | 22.20 kg/m | 28.3 cm² |
| Ø63 mm | 24.47 kg/m | 31.2 cm² |
| Ø70 mm | 30.21 kg/m | 38.5 cm² |
| Ø80 mm | 39.46 kg/m | 50.3 cm² |
| Ø90 mm | 49.94 kg/m | 63.6 cm² |
| Ø100 mm | 61.65 kg/m | 78.5 cm² |
| Ø110 mm | 74.60 kg/m | 95.0 cm² |
| Ø125 mm | 96.33 kg/m | 122.7 cm² |
Calculation: weight = cross-sectional area × steel density (7.85 kg/dm³); cross-sectional area = π × diameter² ÷ 4. The cross-sectional area is the value subtracted from the piston area when calculating the pull force of the cylinder.
Frequently asked questions
What is the difference between chrome plated rod and induction hardened rod?
Both have a chrome plated surface. In induction hardened rod the steel beneath the plating is hardened as well; it is far more resistant to impact and denting.
How do I select the piston rod diameter?
From the load and the stroke. In a long-stroke cylinder working in push, the buckling calculation is decisive; the mounting style also changes the result. If you send us the load, stroke and mounting, we do the calculation together.
Can a scratched cylinder rod be used?
No. A scratch cuts the seal and the cylinder starts leaking in a short time; a scratched rod is replaced with a new one.
What lengths does chrome rod come in?
The rod comes in bar lengths and is supplied cut to size; just tell us the length you need.
Do you machine the rod end as well?
Yes. In cylinder production we thread and machine the rod end in our workshop.
Stock, sizes and part numbers
Sizes in stock, manufacturer part numbers and brands are kept up to date in our catalog. Send us your requirement on WhatsApp or by e-mail and we will quote and ship worldwide.
Chrome plated rod and induction hardened chrome rod in the catalog Online store (Turkish) →