Alva Engineers

• Length: 1240 mm
• Width: 1040 mm
• Height: 450 mm

• Length: 450 mm
• Width: 800 mm
• Height: 250 mm

• Machine diameter: 250 mm
• Brush diameter: 300 mm

• Length: 300 mm
• Width: 180 mm
• Height: 60 mm

It comes standard with a rubber-based underwater vibration-reduced handle for high operator comfort.

The breaker can be connected to any power pack with 20-lpm option power packs and other hydraulic power sources.

Item no. HH20, hex 25 x 108 mm

1010020-01

Item no. HH20, hex 28 x 160 mm

1010427-01

Item no. HH20, hex 32 x 160 mm

1010120-01

Weight [kg]

22

Oil flow [LPM]

20

Working pressure [bar]

110

Max pressure [bar]

160

Blow frequency [Hz]

1480

Blow energy [joule]

60

Sound power level LWa [dB]

106

Vibration level, 3 axis [m/s2]

6.8

CE approval

HYCON HH27 underwater is exceptionally strong in coping with all jobs requiring extreme power (75 % higher performance than the HH20). IIt is designed for underwater applications for breaking concrete, rock & coral removal, etc. The HH27 is very efficient with the best power-to-weight ratio of any of our breakers.

It comes standard with a rubber-based underwater vibration-reduced handle for high operator comfort.

The standard tool size is hex 32 x 160 mm.

The breaker can be connected to the HYCON power packs and other hydraulic power sources. 

Item no., hex 28 x 152 mm, 30 lpm

1010527-01

Item no., hex 28 x 160 mm, 30 lpm

1010427-01

Item no., hex 32 x 152 mm, 30 lpm

1010127-01

Item no., hex 32 x 160 mm, 30 lpm

1010027-01

Weight [kg]

27.4

Oil flow [LPM]

30

Working pressure [bar]

130

Max pressure [bar]

160

Blow frequency [Hz]

1260

Blow energy [joule]

105

Sound power level LWa [dB]

110

Vibration level, 3 axis [m/s2]

10.7

Tool size [mm]

28 (1010527-01, 1010427-01), 32 (1010127-01, 1010027-01)

CE approval

The HYCON HCS cut-off saws cut all types of concrete, steel, rock, etc. The HYCON cut-off saw is a very sturdy tool for cutting even under extreme conditions. The HYCON HCS saws are built for hard use day after day – without breakdowns.

The hydraulic cut-off saw from HYCON can be used for horizontal and vertical cutting. The saw stops automatically if the blade jams thanks to the system pressure relief valve. The blade stops rotating a maximum of 10 sec. after releasing the trigger, ensuring no injury to the operator.

The HCS 14 underwater has holes in the shielding for easy cleaning.

Hydraulic direct drive high-quality motor ensures a minimum of service. 

Item no. 

3030401-01

Weight without hose/disc [kg]

7.4

Blade diameter

Ø350 mm

Cutting depth [mm]

137

Oil flow [LPM]

20-30

Working pressure [bar]

120

Max pressure [bar]

172

Rotation speed max [rpm]

3800

Blade peripheral speed max [m/s]

69

Sound power level LWa [dB]

116

CE approval

The HYCON HCS cut-off saws cut all types of concrete, steel, rock, etc. The HYCON cut-off saw is a very sturdy tool for cutting even under extreme conditions. The HYCON HCS saws are built for hard use day after day – without breakdowns.

The hydraulic cut-off saw from HYCON can be used for horizontal and vertical cutting. The saw stops automatically if the blade jams thanks to the system pressure relief valve. The blade stops rotating a maximum of 10 sec. after releasing the trigger, ensuring no injury to the operator.

The HCS 16 underwater has holes in the shielding for easy cleaning.

Hydraulic direct drive high-quality motor ensures a minimum of service. 

Item no. 

3030451-01

Weight without hose/disc [kg]

7.8

Blade diameter

Ø400 mm

Cutting depth [mm]

162

Oil flow [LPM]

20-30

Working pressure [bar]

120

Rotation speed max [rpm]

3300

Max pressure [bar]

172

Sound power level LWa [dB]

108

Blade peripheral speed max [m/s]

69

Vibration level, 3 axis [m/s2]

<2.5

CE approval

The HYCON underwater handheld hydraulic ring saw offers you the most overall efficient and productive 300 mm deep cutting. Due to its power and cutting depth, it’s a durable and popular choice for all heavy-duty jobs.

With no downtime, the HRS400 UW is a solid partner and an excellent investment with a state-of-the-art mechanism. 

Long-lasting wearing parts secure low operation costs.

The ring saw is extremely powerful and suitable for bigger construction projects requiring concrete and rock cutting. Apply 160 bars, and the saw will allow you to cut deep and fast.

Item no. 

3030650-01

Weight without hose/blade [kg]

10.2

Blade diameter

Ø400 [mm]

Cutting depth [mm]

300

Oil flow [LPM]

30-40

Working pressure [bar]

120

Max pressure [bar]

172

Rotation speed max [rpm]

2350

Blade peripheral speed max [m/s]

49

Sound power level LWa [dB]

109

Vibration level, 3 axis [m/s2]

<2.5

CE approval

Item no. 

3030150-02

Weight [kg]

7.6

Corebit diameter Ø [mm]

25-100

Oil flow [LPM]

20

Working pressure [bar]

100

Max pressure [bar]

172

Rotation max [rpm]

1500

Sound power level LWa [dB]

84

Vibration level, 3 axis [m/s2]

< 2.5

The HCD50-200 Underwater core drill is the most powerful and easily manageable handheld underwater core drill available. The HCD50-200 is extremely easy to use and will drill through any material. There is no need for a drill rig. However, the HCD50-200 fits in a standard drill rig with a 60 mm flange for more demanding jobs.

The core drill has a built-in hydraulic torque limiter, ensuring max torque and no kickback if the core bit jams.

Item no. 

3030050-02

Weight [kg]

7.8

Corebit diameter Ø [mm]

50-200

Oil flow [LPM]

20

Working pressure [bar]

100

Max pressure [bar]

172

Rotation max [rpm]

600

Sound power level LWa [dB]

84

Vibration level, 3 axis [m/s2]

< 2.5

CE approval

Item no. 
(PLEASE NOTE: Hose incl. coupling is not included)

3030002

Item no.
Hose 10m for HWP2 incl. 2" BSP snap-tite coupling

4032697

Weight [kg]

7.7

Oil flow [LPM]

20-30

Max pressure [bar]

172

Max flow capacity [m3/h / GPM]

47 / 206

Max head [m]

30 

Max size of solid particles Ø [mm]

Ø38

Outlet size and connection

BSP 2", female thread 

CE approval

Choose between two types of strainers for your HWP3: The standard strainer for solids up to Ø63 mm or the fine strainer for solids up to Ø10 mm.  

Item no. with standard strainer
(PLEASE NOTE: Hose incl. coupling is not included)

3030003

Item no. with fine strainer
(PLEASE NOTE: Hose incl. coupling is not included)

3030003-01

Item no.
3" Hose 10m for HWP3 incl. 3" BSP snap-tite coupling

4032698

Weight [kg]

11

Oil flow [LPM]

20-30

Max pressure [bar]

172

Max flow capacity [m3/h / GPM]

84 / 369

Max head [m]

20 

Max size of solid particles Ø [mm] 
Standard strainer

Ø63

Max size of solid particles Ø [mm]
Fine strainer

Ø10

Outlet size and connection

BSP 3", female thread

CE approval

The large HWP4 submersible pump is in a league of its own. With a capacity of up to 120 m³/h, it can be used even in groundwater-lowering applications, where much more extensive and costly pumps are usually used.

Paired with, for instance, our 11-kW electric or 18-hp gasoline power packs, you will have a heavy-duty solution with remarkable cost reductions compared to other pumping systems.

The direct drive motor ensures an all-day, everyday operation without damage to the engine or the seals if the pump runs dry.

The clever impeller design makes the pump unaffected by particles size up to 74 mm.

Item no. 
(PLEASE NOTE: Hose incl. coupling is not included)

3030004

Item no.
4" Hose 10m for HWP4 incl. 4" BSP snap-tite coupling

4032699

Weight [kg]

26.7

Oil flow [LPM]

30-40

Max pressure [bar]

172

Max flow capacity [m3/h / GPM]

180 / 793

Max head [m]

20

Max size of solid particles Ø [mm]

Ø74

Outlet size and connection

BSP 4", female thread

CE approval

Item no. 

3030230

Weight without hoses, disc, and guard [kg / lbs]

3.6 / 7.9

Weight without hoses and disc [kg /lbs]

4.2 / 9.2

Weight with hoses, without disc [kg / lbs]

6.4 / 14.1

Blade diameter

Ø230 [mm]

Maximum cutting depth [mm]

80

Oil flow [LPM / GPM]

20-46 / 5-12

Working pressure [bar]

120

Max pressure [bar]

160

Max return pressure [bar / psi]

40 / 580

Rotation speed max [rpm]

4400

Blade peripheral speed max [m/s]

46

Arbor size [Inch]

5/8-11”

Max working depth [m]

50

CE approval

• 25 l.p.m. – 90 l.p.m.

• Liquid-cooled Hatz, 4-stroke
• 38.5 – 74.3 HP (approx. 28.7 – 55.4 KW)
• Diesel
• 2300 rpm

• 20 l.p.m. at 1800 r.p.m.
• 40 l.p.m. at 3600 r.p.m.

• 2-cylinder
• 18 HP (13,4 KW)
• 4 stroke petrol / gasoline

Nemo’s flagship dive light received an upgrade. Version 3 boasts 15,000 lumens versus its predecessor’s 8,000, yet still has all of the features that commercial divers and professional underwater videographers and photographers loved about the original. With 18 Cree LEDs and 10 UV LEDs, five intensity levels, and multiple modes, this powerhouse lights up even the darkest underwater area.

• Intense UV flood mode!
• Batteries can be replaced underwater!
• Comes with one battery

HYCON HH10RV-UW is an exceptionally handy, lightweight pick hammer designed for underwater applications for light breaking. The low weight and compact design make it very suitable for narrow places, or simply smaller tasks.

The HH10RV-UW has holes in the shielding for easy cleaning. 

HH10RV is the strongest 10 kg pick hammer on the market, and no pneumatic has anything like the same performance.

The standard tool size is hex 19 x 50 mm with an optional US 0.580" (item no.: 1010111-01). The hammer can be supplied from any power pack with a 20-lpm option.

Item no. HH10RV HEX 19x50 mm

1010110-01

Item no. HH10RV US 0.580"

1010111-01

Weight [kg]

9.9

Oil flow [LPM]

20

Working pressure [bar]

100

Max pressure [bar]

160

Blow frequency [Hz]

2100

Blow energy [joule]

22

Sound power level LWa [dB]

105

Vibration level, 3 axis [m/s2]

9.6

Tool shank HEX [mm] (optional) 

19 x 50 (US 0.580 inch)

CE approval

The world’s first waterproof cordless rotary hammer drills easily into concrete, wood, and steel, both on land and underwater at depths of up to 50m/164ft.

• Two batteries 22V Li-ion 6Ah
• No load rotation speed 1040 RPM
• Full hammering frequency  5000 IPM
• Single impact energy 3.2 Joule
• Optimal drill diameter (concrete) 1/4 – 5/8 in
• Net weight (with battery) 5kg (11lbs)
• Submersible up to 50m (164 ft)