Overhead Coring for Wall Plug Installation

on April 20th 2009, i went to Bintulu to train a customer who bought Hilti DDEC1 complete with DDREC water recycling unit for an overhead coring job.
they want to install a pipe support using Hilti HVU system but the column are rebar infested so drilling with drill machine has no use.
complete set up to do coring overhead. no wall plug needed.

easy to do coring overhead and very easy to move to next coring point.

easy to operate.

but the customer are using it in MLNG2 plant which prohibit me from taking actual application photo.

Suria Sabah Cutting Job

early April i went to Kota Kinabalu to conduct a site training for our new Diamond Service Contractor, Redback Construction Sdn Bhd.
Suria Sabah is a development on a reclaim land at Kota kinabalu, boasting a shopping mall combined with 4 or 5 star hotel.
Currenty there are demand to change the location of teh escalator as shop owner complain that a few escalator are not in their favor as the location of the escalator will tend to make shopper not notice their shop.
big beams with no time to waste makes it a no choice for hacking. so Redback step in to do the cutting thus eliminating touch up needed after the job finish as with diamond cutting you don't need to touch up later.
cut the tile mortar with DCH300 electric cutter and PMC 36 line laser so we can plant drop in anchor inside the concrete, not inside the mortar.


After separating the slab, we cut the beam using the 1200mm saw blade. LP32 proved to be reliable to cut even beams full with rebar.

As you can see, 44 number of rebar with steel link cut through as well. no problem with Hilti DLP32 wall saw system.

All girls cutting team posed with Hilti TS5SE electric wall saw.

Overhead cutting with DLp32 wall saw system. the machine is hanged upside down by Hilti HSA anchor. cutting 500mm thick excess slab.

DSTS5SE cutting rebar. the electric wall saw are very silent when not cutting. also comes with silent blade if the jobsite cannot endure excess noise level.

After cut, remove the beam with forklift. the supervisor smiled happily as one problem goes away already.

Myself with Redback Construction Sdn Bhd. a pose of graduation.

KL Pavilion Tower crane Base Demolition

KL Pavilion is an upmarket shopping center located in the heart of Sungai Wang, boasting a very refresh experience for shopper (with loads of money of course) and a very classy shop lots.
Last February our customer, CASES sent in their LP32 wall saw unit for service. while we service their unit, we lend them our loaner unit as they cannot stop the job.
as the construction finish, they need to remove the tower crane base so they can utilize the space for other usage. CASES got the job and use their LP32 to cut as the beams are very big and thick.


Hacking are very slow and as you can see, you need to cut the rebar later.


sent the repaired unit back to them. in front is our loaner unit.

the boss using the wall saw system. very easy eh boss?

DD EC 1 Overhead Coring

at 20th April 2009 i went to Bintulu to conduct a site training for Amalgamated Steel Sdn Bhd, a contractor installing downstream pipe at MNLG Bintulu. as a fact, it is impossible to do overhead coring as the water will flow down and going into the coring machine and electric shock can injure the operator, not to mention saying bye bye to the coring machine.
anyway, Hilti already develop a way to do overhead coring and for this case, for anchor holes, DDEC1 diamond coring machine is the best. featuring Top Spin technology, the coring is up to 50% faster than normal coring machine.
Hilti develop a system for the user to do overhead coring in such a way the user don't need to install drop in anchor or to use vacuum base fastening.
An extractable stand come with DDEC1 baseplate is used to fasten from bottom floor up to the upper floor where the user want to core. very fast adjustment and very less hassle to the user.
This is how the set up look like.

used with the DD REC1 water recycling unit that will supply, take the contaminated slurry, filter it and re use the water up to 50 holes.

use a ladder for easier access.

the job in MNLG Bintulu i cannot take picture as Oil & Gas facility is very strict on safety. you cannot bring in any spark inducing devices such as camera, mobile phone and such.

anyway the customer happy as this set up makes them work faster.

Alpine Pipe Diamond Coring

Last January there's a demand for coring from Alpine Pipe manufacturing factory. They need to core a lot of holes to accomodate new machines. Hilti TSR, Yvonne Chean already closed the sale of 1 unit DD200 with 23 units of DD-B 202 U4 core bit. so with the big number they buy, i'm showing myself to see everything is in order.

coring on floor slab 8"

stitch coring.
each point takes around 20 minutes as there was T25 rebar 2 layer. combination of consumables and great machine proves the best solution.