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200 Series Small Rigging Pulley 16mm
SKU: ISC | IS-RP251A1
- Regular price
- £161.46 Ex VAT
- £193.75 Inc VAT
- RRP: £184.95 Ex VAT
- Sale price
- £161.46 £161.46 Ex VAT
- Regular price
-
- £193.75 £193.75 Inc VAT
- Was £184.95 Ex VAT
Free Delivery Over £75 *
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Product information & specifications
ISC RP251 200-Series Small Rigging Pulley 16mm
The ISC RP251 200-Series Small Rigging Pulley 16mm is a next-generation professional arborist rigging pulley designed for demanding lowering, lifting and controlled dismantling applications. Manufactured in the UK by ISC in North Wales, this pulley is built for exceptional strength, reliability and trusted performance in professional tree rigging systems.
Part of ISC’s 200 Series, the RP251 has been redesigned from the ground up using advanced stress analysis, hot-forged high-strength aluminium frames and heat-treated hardened stainless steel axles. The result is a pulley that is up to 150% stronger than previous designs, with a powerful 50kN working load limit for serious rigging applications.
Key Features
- ISC RP251 200-Series Small Rigging Pulley
- Designed for use with up to 16mm rope
- Next-generation ISC 200 Series rigging pulley
- Manufactured in the UK by ISC in North Wales
- Hot-forged high-strength aluminium frame
- Up to 150% stronger than previous ISC rigging pulley designs
- Heat-treated hardened stainless steel axle system
- Unique axle/frame interlocking design to reduce flex under load
- Patent-pending SafeLock locking mechanism
- Low-profile locking system with quick-action operation
- 50kN / 11,240lbf working load limit
- Approved to CE Machinery Directive 2006/42/EC
- UKCA approved to Supply of Machinery Safety Regulations 2008
Next-Generation ISC Rigging Pulley
The ISC RP251 forms part of the new 200 Series range, created to improve strength, reliability and ease of use while retaining the trusted performance professional arborists expect from ISC rigging equipment.
Up to 150% Stronger
ISC redesigned the pulley plates using state-of-the-art stress analysis tools, reshaping and redistributing material within the hot-forged aluminium frame to maximise strength under demanding rigging loads.
Axle & Frame Interlocking Design
The 200 Series uses a unique axle and frame interlocking design combined with heat-treated hardened stainless steel axles. This helps reduce deformation and flex under extreme loads, improving strength and long-term reliability.
Patent-Pending SafeLock Mechanism
The new SafeLock mechanism builds on the reliability and ease of use of ISC’s popular SpringLock system, offering a low-profile design while maintaining quick, practical operation during rigging setup.
Made in the UK
ISC rigging pulleys are designed and manufactured at ISC’s factory in North Wales, where the company has been producing professional safety components and “Solutions in Metal” for over 50 years.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | ISC RP251 200-Series Small Rigging Pulley |
| Product Code | RP251 |
| Maximum Rope Diameter | 16mm |
| Working Load Limit | 50kN / 11,240lbf |
| Frame Material | Hot-forged high-strength aluminium |
| Axle Material | Heat-treated hardened stainless steel |
| Locking Mechanism | Patent-pending SafeLock |
| Approvals | CE Machinery Directive 2006/42/EC, UKCA Supply of Machinery Safety Regulations 2008 |
| Manufacturing | Designed and manufactured in the UK |
Ideal For
- Professional arborist rigging systems
- Tree dismantling and controlled lowering
- Rigging setups using up to 16mm rope
- High-strength lowering and load-control applications
- Arborists needing trusted UK-made rigging hardware
- Demanding tree surgery and forestry rigging operations
Explore More
Best For
The ISC RP251 200-Series Small Rigging Pulley is best suited to professional arborists who need a strong, reliable and UK-made pulley for demanding rigging and lowering work.
Why Choose the ISC RP251 200-Series Small Rigging Pulley?
With its 50kN WLL, SafeLock mechanism, hot-forged aluminium frame and hardened stainless steel axle system, the ISC RP251 delivers serious next-generation strength for professional arborist rigging.
Compatible with rope diameter (mm) Maximum 16mm (5/8")
(MBS) Minimum Breaking Strength (kN) 250
(MBS) Minimum Breaking Strength (lbf) 56202
Serial numbering As standard
Pulley wheel colour Orange
Finish Anodised
Weight (grams) 1887
Weight (ounces) 66.5 (4.1lb)
Approved Standards
CE Machinery Directive 2006/42/EC
UKCA Supply of Machinery (Safety) Regulations 2008
Notes
WLL 50kN (11240lbf)
ISC RP251 200-Series Small Rigging Pulley 16mm
The ISC RP251 200-Series Small Rigging Pulley 16mm is a next-generation professional arborist rigging pulley designed for demanding lowering, lifting and controlled dismantling applications. Manufactured in the UK by ISC in North Wales, this pulley is built for exceptional strength, reliability and trusted performance in professional tree rigging systems.
Part of ISC’s 200 Series, the RP251 has been redesigned from the ground up using advanced stress analysis, hot-forged high-strength aluminium frames and heat-treated hardened stainless steel axles. The result is a pulley that is up to 150% stronger than previous designs, with a powerful 50kN working load limit for serious rigging applications.
Key Features
- ISC RP251 200-Series Small Rigging Pulley
- Designed for use with up to 16mm rope
- Next-generation ISC 200 Series rigging pulley
- Manufactured in the UK by ISC in North Wales
- Hot-forged high-strength aluminium frame
- Up to 150% stronger than previous ISC rigging pulley designs
- Heat-treated hardened stainless steel axle system
- Unique axle/frame interlocking design to reduce flex under load
- Patent-pending SafeLock locking mechanism
- Low-profile locking system with quick-action operation
- 50kN / 11,240lbf working load limit
- Approved to CE Machinery Directive 2006/42/EC
- UKCA approved to Supply of Machinery Safety Regulations 2008
Next-Generation ISC Rigging Pulley
The ISC RP251 forms part of the new 200 Series range, created to improve strength, reliability and ease of use while retaining the trusted performance professional arborists expect from ISC rigging equipment.
Up to 150% Stronger
ISC redesigned the pulley plates using state-of-the-art stress analysis tools, reshaping and redistributing material within the hot-forged aluminium frame to maximise strength under demanding rigging loads.
Axle & Frame Interlocking Design
The 200 Series uses a unique axle and frame interlocking design combined with heat-treated hardened stainless steel axles. This helps reduce deformation and flex under extreme loads, improving strength and long-term reliability.
Patent-Pending SafeLock Mechanism
The new SafeLock mechanism builds on the reliability and ease of use of ISC’s popular SpringLock system, offering a low-profile design while maintaining quick, practical operation during rigging setup.
Made in the UK
ISC rigging pulleys are designed and manufactured at ISC’s factory in North Wales, where the company has been producing professional safety components and “Solutions in Metal” for over 50 years.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | ISC RP251 200-Series Small Rigging Pulley |
| Product Code | RP251 |
| Maximum Rope Diameter | 16mm |
| Working Load Limit | 50kN / 11,240lbf |
| Frame Material | Hot-forged high-strength aluminium |
| Axle Material | Heat-treated hardened stainless steel |
| Locking Mechanism | Patent-pending SafeLock |
| Approvals | CE Machinery Directive 2006/42/EC, UKCA Supply of Machinery Safety Regulations 2008 |
| Manufacturing | Designed and manufactured in the UK |
Ideal For
- Professional arborist rigging systems
- Tree dismantling and controlled lowering
- Rigging setups using up to 16mm rope
- High-strength lowering and load-control applications
- Arborists needing trusted UK-made rigging hardware
- Demanding tree surgery and forestry rigging operations
Explore More
Best For
The ISC RP251 200-Series Small Rigging Pulley is best suited to professional arborists who need a strong, reliable and UK-made pulley for demanding rigging and lowering work.
Why Choose the ISC RP251 200-Series Small Rigging Pulley?
With its 50kN WLL, SafeLock mechanism, hot-forged aluminium frame and hardened stainless steel axle system, the ISC RP251 delivers serious next-generation strength for professional arborist rigging.
Compatible with rope diameter (mm) Maximum 16mm (5/8")
(MBS) Minimum Breaking Strength (kN) 250
(MBS) Minimum Breaking Strength (lbf) 56202
Serial numbering As standard
Pulley wheel colour Orange
Finish Anodised
Weight (grams) 1887
Weight (ounces) 66.5 (4.1lb)
Approved Standards
CE Machinery Directive 2006/42/EC
UKCA Supply of Machinery (Safety) Regulations 2008
Notes
WLL 50kN (11240lbf)
Delivery & Returns
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
