Used Hamm HD138Roller

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🏢 Overview & Manufacturer

Item	Detail
Manufacturer	HAMM (WIRTGEN GROUP / John Deere since 2017)
Model	HD138
Series	HD Compact Series
Type	Tandem Vibratory Roller (soil & asphalt)
Class	Compact-class tandem roller (3.5–4.0 t)
Primary Use	Asphalt compaction, trench backfill, urban & confined-site work

📐 Key Technical Specifications

Parameter	Specification
Operating Weight	~3,850 kg (8,488 lb)
Static Linear Load	~11.5 kg/cm (on drum)
Engine	John Deere / Deutz TCD 2.9 L4 (Stage V compliant)
Engine Power	~54 kW (73 HP)
Vibration Frequency	~68 Hz (High Frequency — ideal for asphalt)
Amplitude (High)	~1.7 mm
Amplitude (Low)	~0.8 mm
Centrifugal Force (max)	~76 kN
Drum Diameter	1,200 mm (47.2 in)
Drum Width	1,300 mm (51.2 in)
Compaction Width (with overlap)	~1,680 mm (66.1 in)
Travel Speed	0 – 12 km/h (infinitely variable, hydrostatic)
Climbing Ability	~30 % (with water ballast)
Water Tank Capacity	~500 L (132 US gal)
Fuel Tank	~110 L (29 US gal)
Turning Radius (outer)	~3,400 mm
Turning Radius (inner)	~2,100 mm

🔧 Design & Construction Highlights

1. Compact & Maneuverable Design

Designed for urban construction, road maintenance, and confined work areas (narrow lanes, parking lots, sidewalks).
Tight turning radius enables work in restricted spaces.
Compact size allows easy transport on trailers without special permits in many regions.

2. Tandem Drum Configuration

Two smooth steel drums (front & rear) — excellent for asphalt mat compaction.
Both drums are vibration-capable (oscillating/vibratory).
Smooth drums → best surface finish, no markings on hot asphalt.

3. High-Frequency Vibration System

~68 Hz frequency = high-frequency compaction → perfect for thin asphalt layers (surface courses, wearing courses).
High amplitude (~1.7 mm) = deep energy transfer → good compaction even in thinner lifts.
Combination of high frequency + high amplitude = excellent productivity on asphalt.

4. Hydrostatic Drive

Fully hydrostatic transmission → smooth, infinitely variable speed control.
No clutch, no gear shifting → operator-friendly, reduces fatigue.
Self-propelled in both directions.

5. Water Spraying System

500 L water tank with electronically controlled front & rear spray bars.
Prevents asphalt from sticking to drums.
Can be activated/deactivated from the cab.

🖥️ HAMMtronic Control System (Intelligent Operation)

The HD138 is equipped with the HAMMtronic operating system — an advanced electronic control platform:

Feature	Description
HAMM Compaction Manager (HCM)	Real-time compaction monitoring (stiffness value, passes count, coverage map)
Compaction Control (CC)	GPS-based mapping of compaction quality → avoids over-compaction or missed spots
ECO Mode	Engine speed automatically reduces when full power isn't needed → saves fuel (~15–20 %)
VarioControl	Automatically adjusts vibration frequency & amplitude based on material & speed
Anti-Skid System	Prevents drum spinning/skidding on steep slopes
SmartDoc	Automatic documentation of all compaction data (passes, speed, temperature, etc.)
On-board Diagnostics	Fault codes & maintenance reminders displayed on screen

🪑 Operator Comfort & Safety

Feature	Detail
Cab	Enclosed ROPS/FOPS certified cab with air conditioning & heating
Seat	Suspended air-ride seat with armrests
Visibility	Excellent all-around visibility, large windows
Controls	Ergonomic joystick + pedal controls
Lighting	LED work lights for night operation
Noise Level	~75 dB(A) (relatively quiet for its class)
Safety	Seat belt interlock, emergency stop, rear-view camera (optional)

✅ Advantages of the HD138

✅ Advantage	Explanation
🥇 High-frequency compaction	Best-in-class for thin asphalt layers & surface courses
🥈 Compact size	Ideal for urban, residential, and confined-site work
🥉 Easy transport	Fits on standard trailer; low transport costs
📊 Smart compaction (HCM)	Data-driven quality control — reduces rework
&Fuel-efficient (ECO mode)**	Saves 15–20 % fuel vs. conventional operation
🔧 Low maintenance	Simple design, easy access to service points
🛠️ Versatile	Works on asphalt, granular material, stabilized soil

📋 Typical Applications

Application	Suitability
🛣️ Asphalt surface/wearing course compaction	⭐⭐⭐⭐⭐ (Excellent)
🛣️ Asphalt binder/intermediate course	⭐⭐⭐⭐ (Very Good)
🏗️ Trench & pipe backfill compaction	⭐⭐⭐⭐ (Very Good)
🏙️ Urban road maintenance	⭐⭐⭐⭐⭐ (Ideal)
🅿️ Parking lot paving	⭐⭐⭐⭐⭐ (Ideal)
🏗️ Small residential road construction	⭐⭐⭐⭐⭐ (Ideal)
🏔️ Steep slope compaction	⭐⭐⭐ (Good, with ballast)

🔄 HD Compact Series Lineup (for context)

Model	Operating Weight	Drum Width	Frequency	Best For
HD10	~1,800 kg	800 mm	70 Hz	Very small jobs
HD12	~2,600 kg	1,000 mm	68 Hz	Small asphalt
HD14	~3,300 kg	1,200 mm	68 Hz	Medium asphalt
HD138 ⭐	~3,850 kg	1,300 mm	68 Hz	Asphalt & urban work
HD150	~4,400 kg	1,500 mm	65 Hz	Larger asphalt

💰 Approximate Pricing (2024–2025 Estimate)

Region	Approximate Price (New)
Europe	€85,000 – €110,000
North America	$95,000 – $125,000
Asia	Varies by market
Used (5–8 yrs)	€40,000 – €70,000

(Prices vary significantly by configuration — HCM, cab type, options)

🏁 Summary

The HAMM HD138 is a premium compact tandem vibratory roller optimized for asphalt compaction in urban and confined work environments. With its high-frequency vibration (68 Hz), smart HAMMtronic compaction control, excellent maneuverability, and fuel-efficient ECO mode, it is one of the most productive and technologically advanced rollers in the 3.5–4.0 tonne class. It's the go-to machine for road maintenance contractors, municipal crews, and small paving companies who demand quality compaction with data proof.

Would you like me to compare it with a specific competitor (e.g., BOMAG BW 120, DYNAPAC CC1200, SAKAI SV515), or go deeper into any specific feature? 🚜