Ronstan 55 Series Ratchet Orbital Block - Single - Swivel Head - Auto and Manual Sailing

55 Series Ratchet Orbit Block - Single - Swivel Head - Automatic and Manual

Automatic Ratchet Block
Now you can enjoy the flexibility to configure your ratchet blocks to your convenience. Ronstan is the only company to offer a ratchet block with automatic and manual engagement modes. In automatic mode, the ratchet mechanism engages when a load is applied, but turns off when released. This allows the sheet to flow smoothly and freely, which is ideal for quick release of the sheet and for gybing asymmetrical spinnakers. In manual mode, the ratchet mechanism can be activated or deactivated as needed. This is the mainsheet configuration preferred by the best sailors. Try the block in both modes and see which you prefer - you really can't go wrong.

Superb holding power of the ratchet block
Simply ,Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated CN machined pulley features generation 2 of our cross-hole geometry. Its holding power reaches 21:1, almost double that of our closest competitor. The unique pulley design features 12 gripping faces that directly resist the movement of loaded line. Traditional designs have only 8 faces with angular resistance to line movement. Our Generation 2 design features straight resistance faces that distribute the load and minimize cable wear. These faces are offset from the radial line, to pull the rope down into the grip zone when under load.

Features:

Holding power up to 20:1
Gentle softening of sheets
High performance cleat
Swivel shackle head for easyUnlimited block rotation.
Stainless steel shackle head for ultimate durability and compatibility with difficult attachment points.
Auto and manual ratchet block

Applications:

Mainsheet systems and spinnaker sheets on dinghies, sports boats and small keelboats up to 'to 8M(26')
Applications of halyards, downhauls and backstays on boats up to 8M(26')
Spinnaker sheets on sports and small boats keelboats (side lead blocks)

Materials:

Sheave: hard anodized aluminum
Ball bearings: high compressive strength carbon black acetal
Frame/cheeks: glass fiber reinforced hardened nylon
Rope tie: SK75 multi-strand Dyneema impregnated, UV stabilized
Head fitting: 316 grade stainless steel

Specifications:
Pulley Ø:55 mm(2")
Ø max. of rope: 10 mm(1/2")
M.W.L.:250kg(550lbs)
B. L.:650kg(1,430lbs)
Weight:82g(2.9oz)

RonstanPerfect is used for turning spinnaker board blocks. Ronstan block can be driven freely in low wind speed. as the wind speed increases, the pressure on the pulley will automatically engage the pawl. The thin plate rope is never stuck in the pulley and can slide like any other ratchet block without first being pulled and then released. 55mm pulley.
PRODUCT ID: 55257
SKU: NVN-55257
CSKU: CWR-55257
REWRITE: 66368-ronstan-series-55-ratchet-orbit-block-153
br> MPN: RF56100
br> UPC: 9316800440375
ASIN: B005O2PUYK
WSKU:
SSKU:
KSKU:
GSKU:
MSKU:
LSKU:
NAME: Ronstan Series 55 Ratchet Orbit Block - Single - Swivel Head - Automatic and Manual
NAME_EX: RONSTAN SERIES 55 RT ORBIT BLOCK SIMPL SWIVEL HEADE
PTITLE: Ronstan Series 55 Ratchet Orbit Block - Single - Swivel Head - Automatic and Manual
TYPE: Sailing | Blocks
SELLER: Ronstan
VEHICLES & PARTS> VEHICLE PARTS & ACCESSORIES> WATERCRAFT PARTS & ACCESSORIES> SAILING PARTS
Sports
Ronstan Ratchet Orbit Block series 55 and 153; - Single - Swivel Head - Auto and Manual (55257)
Ronstan Ratchet Orbit Block, Auto and Manual, Single/Swivel Head | For sailing
Sports
Gtags:

Ronstan

GSpecs:

Ronstan Series 55 Ratchet Orbit Block - Single - Swivel Head - Automatic and Manual Product Description Series 55 Ratchet Orbit Block - Single - Swivel Head - Automatic and Manual

Automatic Ratchet Block
You can now enjoy the flexibility of configuring your ratchet blocks to your convenience. Ronstan is the only company to offer a ratchet block with automatic and manual engagement modes. In automatic mode, the ratchet mechanism engages when a load is applied, but turns off when released. This allows the sheet to flow smoothly and freely, which is ideal for quick release of the sheet and for gybing asymmetrical spinnakers. In manual mode, the ratchet mechanism can be activated or deactivated as needed. This is the mainsheet configuration preferred by the best sailors. Try the block in both modes and see which you prefer - you can't reallyI don't want to fool you.

Superb holding power of the Ratchet Block
Quite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated CN machined pulley features generation 2 of our cross-hole geometry. Its holding power reaches 21:1, almost double that of our closest competitor. The unique pulley design features 12 gripping faces that directly resist the movement of loaded line. Traditional designs have only 8 faces with angular resistance to line movement. Our Generation 2 design features straight resistance faces that distribute the load and minimize cable wear. These faces are offset from the radial line, to pull the rope down into the grip zone when under load.

Features:

Holding power up to 20:1
Gentle softening of sheets
High performance cleat
Pivoting shackle head for unlimited rotation of the block.
Stainless steel shackle head for ultimate durability and compatibility with difficult mounting points.
Automatic and manual ratchet block

Applications:

Mainsheet systems and spinnaker sheets on dinghies, sports boats and small keel boats up to 8M (26')
Halyard applications , downhaul and backstay on boats up to 8M (26')
Spinnaker sheets on sports boats and small keel boats (lead side blocks)

Materials:

Sheave: Hard anodized aluminum
Ball bearings: High resistance carbon black acetal compression
Frame/cheeks: reinforced nylon, reinforced with glass fibers
Rope tie: UV stabilized impregnated SK75 multi-strand Dyneema
Head fitting: 316 grade stainless steel

Specifications:
Pulley Ø:55 mm(2")
Max. rope Ø: 10 mm(1/2")
M.W.L. :250kg(550lbs)
B. L.:650kg(1,430lbs)
Weight:82g(2.9oz)

RonstanPerfect is used to turn spinnaker board blocks. The Ronstan block can be driven freely in low wind speeds. As wind speed increases, pressure on the pulley will automatically engage the pawl. The thin plate rope is never stuck in the tractioney, and can slide like any other ratchet block without first pulling and then releasing. 55mm pulley.

Frequently Asked Questions (FAQ) about the Ronstan Series 55 Ratchet Orbital Block - Single - Swivel Head - Automatic and Manual Who is the Ronstan?
How to describe the Ronstan Series Ratchet Orbital Block 55 - Single - Swivel head - Auto & Manual?
Who is the Ronstan? The sailboat fittings market and the architectural rigging market are different worlds, but in Australia they are both dominated by one powerful player. Ronstan's end-to-end design, manufacturing and distribution operations have become the only serious competitor. Internationally, Ronstan is one of the three largest sailboat hardware brands in the world, instantly recognized and respected in 45 countries. How to describe the Ronstan series 55 ratchet orbital block - single - swivel head - automatic and manual? RonstanPerfect is used to turn spinnaker board blocks. The Ronstan block can be driven freely in light winds. As wind speed increases, pressure on the pulley will automatically engage the pawl. The thin plate rope is never stuck in the pulley and can slide like any other ratchet block without first being pulledeed then released. 55mm pulley.

Save $15 when you purchase the Ronstan 55 Series Ratchet Orbital Block - Single - Swivel Head - Automatic and Manual for only $85from NVN Marine! Same day dispatch before 3 p.m. Ronstan Series 55 Ratchet Orbital Block - Single - Swivel Head - Automatic and Manual Videos Ronstan Series 55 Ratchet Orbital Block - Single - Swivel Head - Automatic and Manual Technical Specifications

Type:	Sail \| Blocks
Seller:	Ronstan
Weight:	0.2 lbs

Ronstan 55 Series Ratchet Orbit Block - Single - Swivel Head - Automatic and Manual User ReviewsRonstan 55 Series Ratchet Orbit Block - Single - Swivel Head - Automatic and Manual Shipping and Return

Shipping Weight:	0.2 lbs
Box sizes:	1.00 (h) x 2.00 (w) x 3.00 (w)
Cubic feet:	6.0
Returnable:	Yes
USPS First Class:	Yes

For a detailed shipping policy, please see our Shipping Policy and you can find our returns and refund policy here.