SKU: 16322879631

Ronstan RF56101 Series 55 Orbit Ratchet & Auto-Ratchet Block

Sale price$84.30 Regular price$93.67
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Description

Ronstan RF56101 Series 55 Orbit Ratchet & Auto-Ratchet BlockRonstan RF56101 Orbit Ratchet Block. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting. Features: Automatic and Manual ratchet in one block Up to 20: 1 holding power Easily fitted and securely retained Dyneema Link head Smooth easing of

Ronstan RF56101 Orbit Ratchet Block. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting.

Features:

  • Automatic and Manual ratchet in one block
  • Up to 20:1 holding power
  • Easily fitted and securely retained Dyneema Link head
  • Smooth easing of sheets
  • High performance cleating

Technical:

  • Sheave Diameter 55mm
  • Maximum Rope Diameter 10mm
  • Maximum Working Load 250kg
  • Breaking Load 500kg
  • Weight 78g

Materials:

  • Ball bearings - High compression strength carbon black Acetal
  • Stage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon
  • Frame/Cheeks - Toughened, glass fibre reinforced Nylon
  • Rope Link: UV stabilised, multi-strand impregmented SK75 Dyneema

Applications:

  • Mainsheet systems on dinghies
  • Spinnaker sheets on dinghies
  • Control line applications on larger yachts

Some RT Orbit Blocks™ can be set to Automatic mode or Manual mode to suit the application or user’s preference.

OPERATION

MANUAL MODE
RT blocks leave the factory in Manual mode, with the black MODE switches on both sides of the block positioned away from the red ON/OFF knob.

Use the red ON/OFF knob to turn the ratchet ON or OFF.

AUTO MODE
With the block in Manual mode, turn the ratchet off by rotating the red ON/OFF knob to the OFF position.

Slide the black MODE switch firmly toward the red ON/OFF knob until it locks into the recess in the knob. Repeat with the MODE switch on the other side of the block.

The block is now in Auto mode.

To return to Manual mode, slide the black MODE switches on both sides of the block firmly away from the red ON/OFF knob. Now use the red ON/OFF knob to turn the ratchet ON and OFF.

We recommend using the RF613S shackle to securely attach the block to the existing deck eye on your boat. This helps the block maintain maximum freedom of movement and reduces the risk of wear on the Dyneema loop due to sharp edges on the deck eye, then use the 8072 Rubber Boot to keep the block upright and provide a neat finish. See related items.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16322879631

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Jane S. Grimshaw
Lake Worth, US
★★★★★ 5
A Child's Guide to visiting London
Format: Paperback
I bought this as a Christmas present for my 12 year old granddaughter as she will be traveling to London this summer. It seemed perfect in describing places to visit and things to do. She was very excited to look at it.
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Reviewed in the United States on December 27, 2022
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DK
San Leandro, US
★★★★★ 5
Kid-friendly
Format: Paperback
Lots of activities and good descriptions of places to visit in London. Our kids (ages 6 and 8) think it’s great. Highly recommend it.
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Reviewed in the United States on January 24, 2018
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Brent Hunsinger
San Leandro, US
★★★★★ 5
Great
Format: Paperback
We love these books for our travels with kiddos. Keep them in our backpack and they always have something to do when we are stuck waiting somewhere. So much great info in these books!
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Reviewed in the United States on June 14, 2019
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Stephanie
Bozeman, US
★★★★★ 1
Weird printing error
Format: Paperback, Format: Paperback
There are about 30 pages in the middle of the book dedicated to “what is special about dad”. I have to imagine we’re missing quite a bit of the actual book.
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Reviewed in the United States on July 4, 2024
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Kim Klos
Pawtucket, US
★★★★★ 5
Great series
Format: Hardcover
The Worst is a great series. I ordered them for my 3 year old granddaughter, and they’re her favorite. She has all except the newest one, which I will be ordering for her birthday.
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Reviewed in the United States on May 12, 2025

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