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Impact Pulley Blocks
SKU: DMM | DD-IMB-XSGR
Key Features
- Tested for dynamic, torsional and static loads
- Interlocking anchor bollard (XS)
- Hollow axle for rope or sling
- Serviceable bearings and components
- Regular price
- £294.75 Ex VAT
- £353.70 Inc VAT
- RRP: £327.50 Ex VAT
- Sale price
- £294.75 £294.75 Ex VAT
- Regular price
-
- £353.70 £353.70 Inc VAT
- Was £327.50 Ex VAT
Free Delivery Over £75 *
Worldwide Shipping from the UK
Trusted UK Arborist Retailer
30-Day Easy Returns
Product information & specifications
DMM Impact Pulley Blocks
The DMM Impact Pulley Blocks are engineered for extreme rigging scenarios where loads may be dropped onto the system, generating significant dynamic forces. Designed for professional arborists, rigging specialists and rescue teams, these blocks combine exceptional strength, durability and rope-friendly performance in a lightweight, high-performance design.
Available in XS, S and L sizes, it's in stock at Gustharts as an authorised DMM dealer, with free UK delivery on this order.
Manufactured using advanced materials and precision engineering, Impact Blocks have been rigorously tested against dynamic, torsional and static loads, delivering a class-leading strength-to-weight ratio. The Impact Block XS introduces an interlocking anchor bollard for double security, oversized bearings for improved efficiency, and a hollow axle design that enables advanced rigging configurations and easier maintenance. Whether used for redirect rigging, winching or snatching timber, these blocks deliver smooth rope handling, reduced friction and maximum control under load.
Key Features & Benefits
- Designed for high-impact rigging scenarios
- Exceptional strength-to-weight ratio
- Rope-friendly design for reduced wear and smooth operation
- Large sheave with oversized bearings
- Interlocking anchor bollard for double security (XS)
- Hollow axle design — rope or sling compatible (XS: 10mm, L: 20mm)
- Serviceable design for bearing replacement and maintenance
Technical Details
Why Choose the DMM Impact Pulley Blocks?
DMM is a long-established Welsh climbing hardware manufacturer, and the Impact Block's rigorous dynamic and torsional load testing specifically targets the demanding forces of controlled dismantling and heavy timber handling — a genuine step up from standard pulleys not rated for shock loading.
Pairs Well With
Complete your rigging system with compatible rigging rope and a connector rated for the block's WLL.
Also Known As
Also searched for as: DMM Impact Block, rigging pulley block, DMM Impact XS, heavy-duty arborist pulley.
FAQs
What are Impact Pulley Blocks used for?
Rigging situations where loads may be dropped or subjected to high dynamic forces, such as tree dismantling.
What is the benefit of the interlocking anchor bollard?
It provides an additional level of security by preventing accidental movement or loosening under load.
Can the pulley be serviced?
Yes — the Impact Block is designed to be serviceable, allowing bearing replacement and maintenance.
What is the hollow axle used for?
It allows additional rigging configurations, including passing a rope or sling through the block.
Which size should I choose?
XS suits compact, lightweight rigging setups; S and L scale up for heavier loads and larger rope or sling diameters.
Climbing Hardware
| Standard | EN12278:2007 |
|---|---|
| Weight | 708g |
| Material | Aluminium |
| Width | 55mm |
| Length | 82mm |
| Working Load Limit (WLL) | 20kN |
| Minimum Breaking Strain (MBS) | 100kN |
| Rope Size | 16mm |
DMM Impact Pulley Blocks
The DMM Impact Pulley Blocks are engineered for extreme rigging scenarios where loads may be dropped onto the system, generating significant dynamic forces. Designed for professional arborists, rigging specialists and rescue teams, these blocks combine exceptional strength, durability and rope-friendly performance in a lightweight, high-performance design.
Available in XS, S and L sizes, it's in stock at Gustharts as an authorised DMM dealer, with free UK delivery on this order.
Manufactured using advanced materials and precision engineering, Impact Blocks have been rigorously tested against dynamic, torsional and static loads, delivering a class-leading strength-to-weight ratio. The Impact Block XS introduces an interlocking anchor bollard for double security, oversized bearings for improved efficiency, and a hollow axle design that enables advanced rigging configurations and easier maintenance. Whether used for redirect rigging, winching or snatching timber, these blocks deliver smooth rope handling, reduced friction and maximum control under load.
Key Features & Benefits
- Designed for high-impact rigging scenarios
- Exceptional strength-to-weight ratio
- Rope-friendly design for reduced wear and smooth operation
- Large sheave with oversized bearings
- Interlocking anchor bollard for double security (XS)
- Hollow axle design — rope or sling compatible (XS: 10mm, L: 20mm)
- Serviceable design for bearing replacement and maintenance
Technical Details
Why Choose the DMM Impact Pulley Blocks?
DMM is a long-established Welsh climbing hardware manufacturer, and the Impact Block's rigorous dynamic and torsional load testing specifically targets the demanding forces of controlled dismantling and heavy timber handling — a genuine step up from standard pulleys not rated for shock loading.
Pairs Well With
Complete your rigging system with compatible rigging rope and a connector rated for the block's WLL.
Also Known As
Also searched for as: DMM Impact Block, rigging pulley block, DMM Impact XS, heavy-duty arborist pulley.
FAQs
What are Impact Pulley Blocks used for?
Rigging situations where loads may be dropped or subjected to high dynamic forces, such as tree dismantling.
What is the benefit of the interlocking anchor bollard?
It provides an additional level of security by preventing accidental movement or loosening under load.
Can the pulley be serviced?
Yes — the Impact Block is designed to be serviceable, allowing bearing replacement and maintenance.
What is the hollow axle used for?
It allows additional rigging configurations, including passing a rope or sling through the block.
Which size should I choose?
XS suits compact, lightweight rigging setups; S and L scale up for heavier loads and larger rope or sling diameters.
Climbing Hardware
| Standard | EN12278:2007 |
|---|---|
| Weight | 708g |
| Material | Aluminium |
| Width | 55mm |
| Length | 82mm |
| Working Load Limit (WLL) | 20kN |
| Minimum Breaking Strain (MBS) | 100kN |
| Rope Size | 16mm |
Downloads
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.
