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Reckmann hydraulic systems
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to fulfill highest demands
Shading Systems
Reckmann solutions for all motor yachts
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for more than 120 years
For all winds from S to XL
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The series of internal mast jack cylinders are laid out for permanent installation in the mast step. Fashioned entirely from stainless steel, both the cylinders and fittings meet all the necessary requirements for corrosion resistance.
The cylinders are screwed into the mast base from above before the base itself is attached to the mast.
| model | HTJ 10 S10 SS | HTJ 15 S15 SS | HTJ 25 S15 SS | HTJ 35 S15 SS | HTJ 50 S15 SS | |
| article code | [-] | 27273 | 27274 | 27272 | 27668 | 27271 |
| capacity | [t] | 10 | 15 | 25 | 35 | 50 |
| stroke | [mm] | 100 | 150 | 150 | 150 | 150 |
| L retracted | [mm] | 200 | 255 | 297 | 250/272 | 267 |
| L extracted | [mm] | 300 | 405 | 447 | 400/422 | 417 |
| outside diameter | [mm] | 60 | 70 | 85 | 107 | 130 |
| effective area | [mm2] | 1385 | 2124 | 3318 | 5027 | 7088 |
| weight | [kg] | 3,4 | 5,3 | 8,1 | 13,6 | 21,9 |
| oil content | [cc] | 208 | 318 | 498 | 942 | 1385 |
| thread | [-] | M60*2 L=30mm | M70*1,5 L=34mm | M85*2 L=52mm | M105*2 L=35mm | M130*2 L=42mm |
| A | [mm] | 200 | 255 | 247 | 297 | 267 |
| B | [mm] | 60 | 70 | 85 | 107 | 130 |
| C | [mm] | 45 | 45 | 45 | 65 | 65 |
| D | [mm] | 38 | 38 | 55 | 60 | 80 |
| E | [mm] | 17 | 15 | 20 | 30 | 35 |
| F | [mm] | 178 | 234 | 230 | 246.5 | 250 |
