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Black Sand Gold Plant For Sale

Fine Black-sand gold dredging equipment for sale.

SORRY SOLD

Reason for the sale:

The creator and owner Geoff Hill died in 2015 and partner is retiring as property to be sold by inheritance beneficiary. Geoff successfully made a living from the mining over 25 years and refined the gear for maximum efficiency. Engineering skills would be an advantage for maintenance and repair.

This complete and functional 2-person gold dredging set-up for fine-sand beaches consists of the following:

  • Tables built on towable base with double wheels and sand tyres, / 36 mats (2 across / 3 down) of deep fiber-pile fleece each 120 x 60cm,
  • Slurry Pump Warmen Centrifugal / PTO powered / with closed impeller
  • Tractor ISEKI TD4410F: chassis no TL 106EF-00098 / 4 wheel drive, DIESEL fuel, water cooled, 4 cylinder
  • Dredge-Plank purpose built 12 m tensioned aluminum plank on wheels to bridge 8-10 meter wide hole / breaks down into 2 separate halves / carries 9 suction heads
  • Gear Trailer custom built of solid metal construction/ off road – unregistered
  • Lay-flat and drag hose / over 400m of 2.5 inch pipe being a mix of heavy irrigator drag hose and light 2.5” blue Sunny lay-flat, mostly in 50m lengths with Cam-lock connectors
  • Water Pumps: Kubota, Diesel, 3 cylinders, water-cooled, electric start
    Alternate pump: Davies Diesel, single cylinder in sturdy drag frame
  • Quad bike: Honda 300FW PETROL with aluminum trailer (unregistered)

These are the major pieces of equipment – there are lots of bits and pieces and spares.

Mineral Permit for Nine Mile Beach Charleston is also available, but take note that erosion of the beach has created a gap between boundary and foreshore and another miner now has the inshore permit. However the Permit could be workable outside 4hours of the Neap high tide, but every tide would fill the hole in. Permit could be included with a full sale of all the gear. Permit Expires in May 2025: Resource Consent in 2026.

The property close to the beach is also up for sale. Consists of a small dwelling and large workshop-garage with 3 bays large enough to shelter Tables, Tractor, Quad on Trailer, and personal vehicle. (Doors are 3.5m high and 3.6m wide. Parking length is 5.7m – 7m) Plus a smaller shed to hold the rest.

SORRY SOLD

The Black Sand Gold Mining Operation

Tables / Slurry Pump / Tractor / 9 suction-head Plank.

Black Sand Gold Plant

Tractor for sale with gold plant

 

 

 

 

 

 

 

The plank is moved forward by pulling on the near end and by a winding ratchet off an anchor at the tractor end. Move about 1 m / hr – enough 3” pipe to allow max 13 hour of pumping equal to dawn-dusk summer day.

results of gold plant running

Shows the hole next morning =near flat trough, 8-10 m wide and 1m deep (Resource Consent limitation). Depth controlled by knots on head ropes. White “boil sticks” stowed on plank overnight – water under pressure churns sand around heads.

Quad bike and rear of Tables =36 (120x60cm) fleece mats. Mats are secured by Velcro and are vacuumed every 2 hours (+/- 30 mins) . The vacuum is built into the Tables and powered from the slurry pump.

Gold tables loaded for storageGold plant on trailer

Gear Trailer loaded showing plank in 2 parts. Our mode of operation was to first pull the trailer onto beach, join the plank up, and then I unloaded while Geoff got the Tables, by which time he could take the trailer back empty and collect the slurry pump.

Slurry Pump showing the 3:1 intake (from the suction heads) and the 4” output to the Tables. While operating, the Concentrate barrels are rotated. Heavy sands are flushed from 2 barrels then refilled during the 2-hour shift – need a minimum of 4 hours rotation for max recovery of gold by mercury. Can accumulate over the season.

gold mining slurry pump

Kubota Diesel 3 cylinder Pump used to pump water from pond or creek for >400m of 2.5” lay-flat and irrigator drag hose (50m lengths with Camlock connectors)

pump to run gold plant

lay flat hose for gold plant

 

 

 

 

 

 

Alternative Davies I cylinder pump can be manhandled up/down 10m slope to pump > 200m from pool.

Alternate pump for gold plant

The Full Gold Claim Story

As a long-term co-worker I inherited the gold mining business and permit when Geoff died, and the property went to his daughter who is keen to sell, as she needs the money to build her own place elsewhere.

To explain the situation with the Permit:

The permit is classified as Tier 2 Hobby claim with light machinery and hand tools. Geoff maximized that definition in the equipment. Definitely a level up from Recreational. The Permit can only be worked late winter, spring and early summer on the Neap tides and calm seas. We would be happy to get 300 hours of run time (not including set-up, and 2-hourly vacuuming of the mats). We would expect an average of 10 hours run-time to the Troy ounce.

The boundaries of the permit would have to be defined from the NZ Petroleum & Minerals map.

When Geoff started he had a dynamic foreshore boundary that moved in with the Mean-High-Tide. This policy was dropped with Government and Department change but Geoff was unaware of this and so did not realize that nzP&Ms had set his inshore boundary as static as of 2005, nor did they point this out when he renewed in 2015 (he died before the renewal came through). I only became aware of it when I saw that a new permit had been granted over all of the legal road including the foreshore.

I endeavored to arrange to work the foreshore on a tribute to the new miner (who has a Recreational License) and paid for the Resource Consent to be extended to his permit. Unhappily my co-worker had an argument with him and the deal fell through. Erosion has left my inshore boundary many meters out from the current dune-face.
I am not confident that the heavy machinery would be that usable so far out from the dune face – it would be very vulnerable to storm surge, everything would have to be taken off the beach between high tides, and every high tide would fill the hole back in; meaning a complete restart. I do not have the engineering skills to make repairs.

The permit could be utilized with a small table and shovel, but I would have to make a table from scratch for that and I am not interested. I doubt that a digger would ever be allowed on this very popular beach even though one is used on the other side of the Totara River. However, I would be happy to include the permit in the sale of the gear, or sell it separately.

The gear could be used on some other beaches so long as there is suitable access, a pump-able water source, fine enough sands that seepage is less than water delivery and the water level over the heads can be maintained. I can provide information by photo presentation in the running of the equipment, or hands-on instruction by negotiation. (I have worked 9 annual seasons on it and managed to train 2 co-workers after Geoff died. The basics are not that hard – but working it efficiently is tricky)

A mining friend helped me to make a rough estimate of the second-hand value of the working gear and we came to a total of $40,000. We bought the tractor alone for $10,000 and it has been well maintained and used gently. The Tables, plank, and slurry pump would cost a fortune to be custom manufactured (Geoff was very skilled and clever). I would prefer to sell the lot, and all the extraneous bits & pieces that go with it, as I have to clear everything if the property sells to a non-miner. At that point I would be willing to negotiate.

My hope is that I can sell for enough to afford a trip to the Antarctic as that was a dream Geoff and I shared – he got there, I didn’t.  (Now it would have to be a cruise not a working adventure!) This would be a finer way to remember him than the mess he unwittingly left behind.

SORRY SOLD

GEOFF’S FINE BLACK-SAND BEACH GOLD MINING PLANT

ITEM MODEL TYPE MOTIVE source INFORMATION OTHER
TRACTOR ISEKI TD4410F DIESEL – water cooled 4cylinder / 4WD Chassis no TL106EF-00098

extra Oberg inline oil filter

Hours=6286
QUAD BIKE HONDA 300FW PETROL Used to pull water pump/s

+ spares on old quad

Quad trailer Local Off road With drive up ramps Tray: 184x118cm / Tow frame140cm
Gear trailer Off road 6’x10’

tray

(179x281cm)

12”dual wheels

external grease nipples

Duratorc suspension /

tow frame= 220cm long

High sides=320mm / ends for ramps

2000kg

max load

Pump Davies Diesel Single cylinder water In sturdy frame / removable fuel tank 2.5” in/out
Pump Kubota Diesel 3 cylinder Water cooled Electric start / in trailer frame

CAN PUMP> 500M, removable fuel tank

2.5” in/out
Job-specific dimensions Wheel base
Recovery TABLES Custom 2.5mWx5mL

3mH

Double wheels

Sand tyres

Stacked 4+2 levels, 12 sets of 1.2x.6m fleece mats x3 = 14.4 m wide (48feet)
Slurry Pump Warman Centrifical PTO / closed impellor

3 piston compressor / gearbox

inbuilt 2-ended trailer

Sends slurry to tables /

Rotates concentration barrels /

vacuum to suck recovery mats/

Water/ sand / Gravel to 1.5” stone

3”in-4”out?

 

Slurry pipes 3×3” All new seals Length allows 12-13hours forward run-time
barrels concentration 40kg when loaded 6 rotated while slurry pump working
Plank aluminium Spans 10m Wheels & pulley 9 heads suck 8m wide (near flat bottom)
Conveyor

Rubber mats

Cut to 3 deep and 3 half depth to

Contain sand heap and water

Water hose Sunny

Drag hose

2.5”layflat

2.5” black

(blue) mostly good

(travelling irrigator)

mostly 50m long / Camlock connectors

Mostly patched – good for gorse etc

Total of both = 400m+
mercury 20+/- kg $40/kg?
OTHER
Generator Honda Petrol 9×750 horse / 3-5 kw
Motor Deutze Diesel 1 cylinder / 15 hp Drives pump
Pump Honda Swimjoy Diesel 5-6 horsepower 2 inch / ?
Pump Honda Centrifical Diesel 3 hp 1.5-1.75”?
Gear box reduction
Suction heads screened Set of 6 larger +1 spare for the 9 head set
Pump Trash

 

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