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Wacker Neuson BS70-4a Vibratory Rammer 4 Stroke - Jumping Jack Tamping Rammer Compactor

Wacker Neuson BS70-4a Vibratory Rammer 4 Stroke - Jumping Jack Tamping Rammer Compactor

SKU: 5100030610
$4,999.99
$4,799.00
Shipping calculated at checkout.

Wacker Neuson BS70-4a Vibratory Rammer 4 Stroke - Jumping Jack Tamping Rammer Compactor

  • 4 stroke rammer with Honda GXR120 engine
  • Convenient operation with only one single lever for start, stop and idling
  • Large stroke, high percussion rate and high impact force with quick travel speed for a high level of performance
  • Specially designed and developed 4-stage air filter system provides for longer operating time and greater durability
  • With operating hours counter
  • Protection against low oil level: Unit does not start if the sensor detects a low oil level.
OPERATING FLUIDS Imperial Metric
Lubrication intervall 250 h 250 h
Oil volume 0,238 gal US 0,900 l
Oil specification SAE 10W-40 SAE 10W-40
ENGINE Imperial Metric
Air cleaner dry air filter dry air filter
Fuel management Carburettor Carburettor
Engine operating mode four-stroke four-stroke
Cooling air cooling air cooling
Exhaust-gas limit EPA TIER II EPA TIER II
Oil specification SAE 10W-40 SAE 10W-40
Operating Engine speed 4.100 1/min 4.100 1/min
Fuel consumption 0,3 GPH US 1,7 lb/h 1,10 L/hr 0,75 kg/h
Idling speed 1.850 1/min 1.850 1/min
Operating power 3,6 hp 2,7 KW
Engine type Gasoline engine Gasoline engine
Cylinder 1 1
Standard (Power max.) SAE J1349 SAE J1349
Engine Manufacturer Honda Honda
Standard (Operating power) ISO 3046-1 ISO 3046-1
Standard (Effective power) ISO 3046-1 ISO 3046-1
Cylinder capacity 7,4 Inch3 121 cm3
Nominal Engine speed 4.200 1/min 4.200 1/min
Fuel Gasoline Gasoline
Spark plug(s) DENSO U16FSR-UB DENSO U16FSR-UB
Electrode distance 0,6 - 0,7 mm
Effective power 3,6 hp 2,7 KW
Oil filling max. 0,1 gal US 0,30 l
Engine Designation GXR120 GXR120
MECHANICAL - OUTPUT DETAILS Imperial Metric
Transmission FKK FKK
Power of impact 4.496,2 lbf 20 kN
Area capacity 1.270,2 ft2/h 118 m2/h
Forward Running 0,4 fps 7,00 m/min
Engaging speed 2.500 1/min 2.500 1/min
Number of blows 656 1/min 656 1/min
ELECTRICAL SYSTEM Imperial Metric
Display Equipment Operating hours counter Operating hours counter
Electrode distance 0,024 - 0,028 " 0,6 - 0,7 mm
Operating elements Pushbutton OFF Pushbutton OFF
ENVIRONMENT DATA Imperial Metric
Operating temperature range 14 - 104 °F -10 - 40 °C
Sound level LpA (Standard) EN 500-4 EN 500-4
Sound power LWA, guaranteed 108,0 dB(A) 108,0 dB(A)
Storage temperature range -22 - 122 °F -30 - 50 °C
HAV summation (average value) 28,2 ft/s2 8,6 m/s2
Uncertainty in measurement HAV 2,3 ft/s2 0,7 m/s2
HAV summation (Standard) EN 500-4 EN 500-4
Sound level LpA 92,0 dB(A) 92,0 dB(A)
Sound power LWA (Standard) EN 500-4 EN 500-4
Sound power LWA, measured 104,0 dB(A) 104,0 dB(A)
MECHANICAL DETAILS Imperial Metric
Operating weight 176,4 lb 80,0 kg
Length 26,5 " 673 mm
Length Ramming Shoe 13,4 " 340 mm
Height 38,0 " 965 mm
stroke at tamper 2,9 " 73 mm
Width Ramming Shoe 11,0 " 280 mm
Width 13,5 " 343 mm
Weight 176,37 lb 80,00 kg

 

Discover Reliable Compaction Power with the Wacker Neuson BS70-4a Vibratory Rammer 4 Stroke - Jumping Jack Tamping Rammer Compactor

When it comes to compacting soil, gravel, or cohesive clay, construction professionals know the value of equipment that combines reliability, power, and efficiency. That’s why the Wacker Neuson BS70-4a Vibratory Rammer 4 Stroke - Jumping Jack Tamping Rammer Compactor remains a top choice among contractors, municipalities, and landscapers who refuse to compromise on performance or operator comfort.

In this comprehensive article, we’ll explore what makes the BS70-4a stand out, its impressive specifications, real-world applications, maintenance tips, and why it’s a trusted name on job sites worldwide. Whether you’re considering your first rammer or looking to upgrade, read on to see why the Wacker Neuson BS70-4a is a proven investment.

What is the Wacker Neuson BS70-4a Vibratory Rammer?

The Wacker Neuson BS70-4a is a high-performance Jumping Jack tamping rammer compactor powered by a reliable 4-stroke Honda engine. This design delivers deep, consistent compaction for backfilling trenches, preparing foundations, landscaping projects, and utility installations.

Engineered with contractors in mind, it pairs strong impact force with low emissions, reduced noise, and lower maintenance compared to older 2-stroke machines — making it ideal for urban projects, environmentally sensitive jobs, and crews that demand consistent performance.

Key Features of the Wacker Neuson BS70-4a Vibratory Rammer 4 Stroke

✅ Powerful 4-Stroke Honda Engine

At the heart of the BS70-4a is a robust Honda GXR120 engine, designed specifically for rammers. It delivers steady power, improved fuel efficiency, and low noise — all while meeting the latest emission standards.

Benefits include:

  • No need to mix oil and fuel (unlike 2-stroke engines)

  • Lower operating costs

  • Cleaner exhaust for healthier work sites

✅ High Impact Force for Tough Soils

The BS70-4a delivers up to 3,375 pounds of impact force, making it suitable for compacting:

  • Clay and cohesive soils

  • Granular backfill

  • Sand and gravel layers

Its strong compaction power helps ensure a stable base, critical for roads, foundations, and underground utilities.

✅ Large Footprint for Efficient Work

Equipped with a shoe size around 11 x 13 inches (280 x 330 mm), this rammer covers more ground with each pass while maintaining deep compaction — speeding up productivity without sacrificing quality.

✅ User-Friendly Design

Wacker Neuson focused on operator comfort:

  • Reduced vibration to limit fatigue

  • Ergonomic handle for better control

  • Optimized center of gravity to make starting, maneuvering, and turning easy, even in narrow trenches

✅ Maintenance-Friendly Construction

With durable materials and fewer moving parts in the 4-stroke engine, the BS70-4a reduces downtime. Easy access panels and straightforward design mean quicker routine service.

Technical Specifications at a Glance

Feature Specification
Engine Honda GXR120, 4-stroke
Operating weight ~165 lbs (75 kg)
Percussion rate ~680 impacts/minute
Shoe size ~11 x 13 inches (280 x 330 mm)
Impact force ~3,375 lbs (~15 kN)
Fuel tank capacity ~2.8 liters
Noise level Lower than many 2-stroke equivalents
Emission compliance Meets strict EPA and EU standards

Where the BS70-4a Excels: Real-World Applications

Thanks to its versatility and power, the Wacker Neuson BS70-4a Vibratory Rammer 4 Stroke - Jumping Jack Tamping Rammer Compactor is trusted for:

  • Utility trench backfilling: Even compaction around pipes and cables

  • Road repairs: Repairing sidewalks, potholes, and curbs

  • Foundation preparation: Creating stable bases for residential and commercial projects

  • Landscaping: Compacting soil before paving stones, retaining walls, or sod

  • Confined spaces: Maneuverable design works well in tight, narrow areas

Its reduced noise and emissions also make it ideal for projects near homes, schools, or hospitals.

Benefits of Choosing the Wacker Neuson BS70-4a

✅ Eco-Friendly Compaction

The 4-stroke engine burns cleaner, producing fewer emissions than traditional 2-stroke models. It meets modern environmental standards, helping contractors bid on green-certified and urban projects.

✅ Reduced Fuel Costs

Better fuel efficiency and no need to mix oil and gas saves money and simplifies refueling on busy job sites.

✅ Durable and Dependable

Designed for rugged use, the BS70-4a withstands tough conditions, making it a reliable choice for daily use by professional crews.

✅ Operator Comfort

Lower vibration and thoughtful balance reduce fatigue, improving safety and productivity over long shifts.

✅ Resale Value

Wacker Neuson’s reputation for quality means equipment retains value, a benefit for growing businesses planning future upgrades.

Maintenance Tips to Keep Your BS70-4a Running Strong

  1. Check the air filter daily: Clean or replace if dusty

  2. Inspect the shoe and springs: Replace if excessively worn

  3. Change engine oil regularly: Follow the manufacturer’s service intervals

  4. Keep fuel fresh: Use clean, high-quality gasoline

  5. Clean exterior: Remove soil buildup to prevent wear and overheating

A few minutes of daily checks can extend your rammer’s lifespan and reduce downtime.

Why Choose Wacker Neuson?

With over 90 years in construction equipment innovation, Wacker Neuson sets industry benchmarks:

  • Global dealer network: Quick parts and service support

  • Trusted engineering: Built to last under real-world conditions

  • Innovation: Focused on performance, safety, and sustainability

  • Quality control: Rigorous testing ensures reliability and durability

The BS70-4a continues this tradition, blending time-tested quality with modern efficiency.

The Future of Compaction: Sustainability Meets Power

Modern construction sites demand equipment that’s both powerful and environmentally responsible. The Wacker Neuson BS70-4a Vibratory Rammer 4 Stroke - Jumping Jack Tamping Rammer Compactor meets this need by delivering:

  • Reliable compaction force

  • Cleaner operation

  • Lower operator fatigue

  • Fewer maintenance headaches

Whether you’re building roads, laying pipes, or preparing foundations, the BS70-4a helps your team work smarter, safer, and more efficiently.

Conclusion: Invest in Proven Performance

The Wacker Neuson BS70-4a Vibratory Rammer 4 Stroke - Jumping Jack Tamping Rammer Compactor is more than just a tool; it’s a commitment to quality, efficiency, and responsible construction practices.

Its combination of 4-stroke Honda power, deep compaction, lower emissions, and ergonomic design makes it the trusted choice for contractors worldwide. Backed by Wacker Neuson’s legacy of innovation and support, the BS70-4a keeps your projects moving forward — even in the toughest conditions.