SM-28

Micro-Pile / Jet Grout

The SM-28 is a multipurpose rig that suits a wide range of civil engineering work requirements.

High standard components and advanced hydraulic circuit design have enabled increased rig performance, preserving its reliability, even under extreme conditions.

Its smart and compact de-sign allows fast rig assem-bly and ease of transport (even in a container). Minimum operating costs.

Soilmec SM-28 versatility unit that can be tailored to any customer need or geological conditions:

Top hammer kit
Jet Grouting kit
CFA kit
Double rotary
Rod carousel
Clamp & guide for CFA
13500 mm feed stroke
Mast tilting until 18°

Key Specifications

Operating Weight (approximate)	72,752 - 83,776 lbs	33,000 - 38,000 kg
Max Torque	24,339 ft-lbs	3,300 daNm
Clamp Range	2.4 - 16.9 in	60 - 430 mm

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USMetric

Overview

Hoist & Feed System	Winch Crowd	Winch Crowd
Feed Stroke	531.5 in	13,500 mm
Rod Length Type (c/w one rotary head)	10 + 10 + 20 ft	3 + 3 + 6 m
Maximum Hoist Pull (Nominal/Effective)	38,217 lbf	170 m
Maximum Hoist Feed Force (Nominal/Effective)	19,558 lbf	87 kN
Maximum Speed (Fast/Low Operation)	92 / 39 ft/min	28 / 12 m/min

Rotary Head Range	Standard	Standard
Gear Box Type	Variable	Variable
Maximum Torque (1st Gear)	24,339 lbf*ft @ 49 rpm	3,300 da Nm @ 49 rpm
Maximum Drilling Speed	137 rpm	137 rpm
Maximum Tools Power (Max Power on Rotary)	159 hp	119 kW
Inner Passage	4.7 in	120 mm

TEST
Operating Weight (approx.)	72,752 / 83,776 lb	33,000 / 38,000 kg
Undercarriage
Track Shoe Width	23.6 in	600 mm
Wheel Base (centre idler to centre sprocket)	146.1 in	3,710 mm
Overall Length	177.6 in	4,511 mm
Overall Width (ext/retr)	137.8 / 98.4 in	3,500 / 2,500 mm
Travelling Speed	0.86 mph	1.39 km/h
Max Climbing Capacity (Gradeability)	34% (19˚)	34% (19˚)
Average Ground Pressure	12.3 psi	0.085 Mpa
Tail Swing Radius	159.4 in	4050 mm
Ground Stabilizers	n˚2 fixed with inclined arm on front + n˚2 fixed on rear	n˚2 fixed with inclined arm on front + n˚2 fixed on rear

Diesel Engine
Make and Model	CUMMINS QSB 6.7	CUMMINS QSB 6.7
Emmision Certification	U.S. EPA Tier 4(i) , CARB Tier 4(i), EU Stage III B	U.S. EPA Tier 4(i) , CARB Tier 4(i), EU Stage III B
Aspiration	Turbocharged and charge liquid cooled	Turbocharged and charge liquid cooled
Power Rating	260 hp @ 2,200 rpm	194 kW @ 2,200 rpm
Fuel Tank Capacity	100 US gal	380 l
Sound Power Level and Sound Pressure Level	LwA 110 - LpA 78 dB(A)	LwA 110 - LpA 78 dB(A)

Clamp & hydraulic joint breaker
Nominal Size	2.4 - 16.9 in	60 - 430 mm
Maximum Clamping Force	62,945 lbf	280 kN
Maximum Breaking Torque	64,905 lbf*ft	8,800 daNm
Pull-up Extractor Clamp Force	58,450 lbf	260 kN
Pull-up Extractor Clamp Stroke	21.7 in	550 mm

Transport Configuration
Length	511.8 in	13,000 mm
Width	98.4 in	2,500 mm
Height	126 in	3,200 mm
Weight	68,343 - 83,776 lb	31,000 - 38,000 kg

Key Specs

Operating Weight (approximate)	72,752 - 83,776 lbs	33,000 - 38,000 kg
Max Torque	24,339 ft-lbs	3,300 daNm
Clamp Range	2.4 - 16.9 in	60 - 430 mm