{"title":"TerraRoc Rock Drilling Tools","description":"\u003cp\u003eTerraRoc down-the-hole drilling tools from Warthog Air Compressor Store, including the PPD 120 utility power pole drill, accelerator shrouds, extension rods and QL 120 hammer service parts. TerraRoc builds DTH hammers, bits and casing systems for utility pole, foundation and geotechnical drilling.\u003c\/p\u003e","products":[{"product_id":"terraroc-ppd-120-utility-power-pole-drill","title":"TerraRoc PPD 120 Utility Power Pole Drill, 12.25 to 24 in Rock Sockets","description":"\u003cp\u003eThe \u003cstrong\u003eTerraRoc PPD 120 Utility Power Pole Drill\u003c\/strong\u003e is a truck-mounted down-the-hole drilling system built for one job: cutting clean, straight pole sockets in solid rock. It hangs from the utility derrick you already own, runs on compressed air, and produces a finished socket from 12.25 in to 24 in diameter, 84 in deep as standard and 156 in deep with the 72 in extension rod.\u003c\/p\u003e\n\n\u003ch2\u003eWhy a DTH pole drill beats augering and blasting in rock\u003c\/h2\u003e\n\u003cp\u003eTerraRoc puts it plainly: the PPD 120 drills sockets in solid rock faster and more efficiently than either auger drilling or blasting. That is the whole case for the machine.\u003c\/p\u003e\n\u003cp\u003eAugers work until they reach competent rock, and then they polish it. The crew burns hours on refusal, swaps to a rock auger, chips teeth, and still finishes with an oversized ragged hole that needs more backfill and more compaction. Blasting gets through the rock but brings permits, a licensed crew, exclusion zones, vibration monitoring near structures, and a schedule that is no longer yours to control.\u003c\/p\u003e\n\u003cp\u003eThe PPD 120 avoids both problems. The QL 120 hammer breaks rock by percussion at the bottom of the hole, so penetration rate stays roughly constant whether the formation is weathered or competent. What comes out is a round socket at a controlled diameter, which is exactly what a direct-embed pole or a grouted anchor cage needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePredictable production\u003c\/strong\u003e in granite, limestone, basalt and sandstone where augers refuse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo blasting permits\u003c\/strong\u003e, no exclusion zone, no vibration survey\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound, straight, repeatable sockets\u003c\/strong\u003e that cut backfill and grout volume\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne crew, one truck\u003c\/strong\u003e, because the drill works off the derrick already on site\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViable in urban right-of-way\u003c\/strong\u003e and near existing structures where blasting is not an option\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow the PPD 120 is built\u003c\/h2\u003e\n\u003ch3\u003eQL 120 hammer\u003c\/h3\u003e\n\u003cp\u003eThe drill is built around the TerraRoc QL 120 down-the-hole hammer. Percussive energy is delivered at the bit rather than through the drill string, so energy loss does not scale with depth and the hole stays straight.\u003c\/p\u003e\n\u003ch3\u003eAir swivel and cushion\u003c\/h3\u003e\n\u003cp\u003eAn advanced air swivel with integrated cushion feeds air to the hammer while damping the percussive feedback that would otherwise travel up into the derrick boom and rotation head. This is what makes the system workable on a utility truck instead of only on a purpose-built drill rig.\u003c\/p\u003e\n\u003ch3\u003ePin connections\u003c\/h3\u003e\n\u003cp\u003eThe drill assembles and breaks down on pin connections rather than threaded joints, so a crew can change oversleeves, add the extension rod, or pull the hammer for service in the field.\u003c\/p\u003e\n\u003ch3\u003e2-5\/8 in hex drive\u003c\/h3\u003e\n\u003cp\u003eThe drill takes rotation through a 2-5\/8 in hex drive, the common interface on utility derrick rotation heads.\u003c\/p\u003e\n\n\u003ch2\u003eWhat your derrick needs to run it\u003c\/h2\u003e\n\u003cp\u003eThe PPD 120 adapts to most utility derrick platforms, provided the truck brings two things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation torque:\u003c\/strong\u003e 6,000 ft-lb minimum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHoist capacity:\u003c\/strong\u003e enough to lift and control the assembled drill, which is 2,243 lb bare and up to 4,580 lb with the 22 in oversleeve fitted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure your platform qualifies, call with the derrick make and model and we will check the rotation and hoist ratings against the drill before you order.\u003c\/p\u003e\n\n\u003ch2\u003eAir supply: size the compressor correctly\u003c\/h2\u003e\n\u003cp\u003eThis is the specification that most often gets missed. The PPD 120 is a high-consumption DTH tool:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWorking pressure\u003c\/th\u003e\n\u003cth\u003eAir required\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 PSI\u003c\/td\u003e\n\u003ctd\u003e804 SCFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e125 PSI\u003c\/td\u003e\n\u003ctd\u003e1,028 SCFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eRunning the hammer short on air does not just slow the drill down, it starves the percussion cycle and accelerates wear on the piston and the bit. Plan on a 900 to 1,100 CFM class portable diesel compressor matched to the pressure you intend to run. Warthog sells machines in exactly this range, so we can quote the drill and the air together and make sure the pair actually works. See our \u003ca href=\"\/collections\/towable-air-compressors\"\u003etowable air compressors\u003c\/a\u003e, or call and we will size it against your drilling plan.\u003c\/p\u003e\n\n\u003ch2\u003eLubrication is not optional\u003c\/h2\u003e\n\u003cp\u003eA DTH hammer run dry will damage the piston quickly, and that stays true even when drilling with water. Water is not a substitute for oil. TerraRoc calls for roughly two thirds of a pint of rock drill oil per hour for every 100 SCFM of air, which at 804 SCFM works out to about 5 to 6 pints an hour, and they recommend doubling it for wet drilling above 2 gpm. Many crews meet this with a standalone aftermarket oiler; the factory answer is the \u003ca href=\"\/products\/terraroc-ppd-120-support-module\"\u003esupport module\u003c\/a\u003e, which handles oil, dust suppression water and pressure control in one package.\u003c\/p\u003e\n\n\u003ch2\u003eHole size and oversleeves\u003c\/h2\u003e\n\u003cp\u003eThe drill covers finished sockets from 12.25 in to 24 in. For diameters above 17.25 in TerraRoc offers oversleeves, also called accelerator shrouds, which fit over the hammer and help stabilize the drill in the hole so the string stays centered and the socket stays plumb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOversleeves are optional.\u003c\/strong\u003e Whether you need one depends on your ground and your setup. Crews drilling straight, competent rock routinely run a large bit without an oversleeve. They earn their keep in broken, fractured or loose ground where the string wants to wander, and on deeper sockets where a small deviation at the collar becomes a large one at the bottom. Size by finished hole diameter:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFinished hole\u003c\/th\u003e\n\u003cth\u003eOversleeve\u003c\/th\u003e\n\u003cth\u003ePart no.\u003c\/th\u003e\n\u003cth\u003eSleeve OD\u003c\/th\u003e\n\u003cth\u003eAdded weight\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.25 in to 17.25 in\u003c\/td\u003e\n\u003ctd\u003eNone needed\u003c\/td\u003e\n\u003ctd\u003en\/a\u003c\/td\u003e\n\u003ctd\u003en\/a\u003c\/td\u003e\n\u003ctd\u003eDrill only, 2,243 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver 17.25 in\u003c\/td\u003e\n\u003ctd\u003e16.75 in oversleeve\u003c\/td\u003e\n\u003ctd\u003e52354589\u003c\/td\u003e\n\u003ctd\u003e16.75 in\u003c\/td\u003e\n\u003ctd\u003e1,080 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver 20.50 in\u003c\/td\u003e\n\u003ctd\u003e20 in oversleeve\u003c\/td\u003e\n\u003ctd\u003e89010038\u003c\/td\u003e\n\u003ctd\u003e20 in\u003c\/td\u003e\n\u003ctd\u003e1,790 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver 22.50 in\u003c\/td\u003e\n\u003ctd\u003e22 in oversleeve\u003c\/td\u003e\n\u003ctd\u003e89010040\u003c\/td\u003e\n\u003ctd\u003e22 in\u003c\/td\u003e\n\u003ctd\u003e2,337 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eMaximum finished hole size is 24 in. Not sure whether your ground calls for an oversleeve? Call (888) 229-9904 and we will talk it through before you buy one.\u003c\/p\u003e\n\n\u003ch2\u003eDrilling depth\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003eDepth\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard PPD 120\u003c\/td\u003e\n\u003ctd\u003e84 in (2.13 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWith 72 in extension rod\u003c\/td\u003e\n\u003ctd\u003e156 in (3.96 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e84 in covers the majority of distribution pole sockets. The 72 in extension rod (part no. 51792232) is the answer for transmission structures, deeper embedment specifications, or anywhere the engineer calls for more than seven feet of rock socket.\u003c\/p\u003e\n\n\u003ch2\u003eOptional support module\u003c\/h2\u003e\n\u003cp\u003eThe support module (part no. 51776011) is a single skid that adds the functions a production pole crew tends to want after the first week:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHammer lubrication, metered automatically into the air line\u003c\/li\u003e\n\u003cli\u003eWater injection for dust suppression, which matters for silica exposure compliance and for visibility on the hole\u003c\/li\u003e\n\u003cli\u003eAir valve for collar and drill pressure control, so the operator can collar the hole gently and then come up to full pressure\u003c\/li\u003e\n\u003cli\u003eRemote control box, moving the operator back from the hole\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTerraRoc PPD 120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct number\u003c\/td\u003e\n\u003ctd\u003e52354523\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003ePercussive pole drill with air swivel and 2-5\/8 in hex drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHammer\u003c\/td\u003e\n\u003ctd\u003eTerraRoc QL 120 DTH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter diameter\u003c\/td\u003e\n\u003ctd\u003e11.21 in (284.7 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall length\u003c\/td\u003e\n\u003ctd\u003e118 in (3,000 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum hole size\u003c\/td\u003e\n\u003ctd\u003e12.25 in (311 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum hole size\u003c\/td\u003e\n\u003ctd\u003e24 in (609 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrilling depth, standard\u003c\/td\u003e\n\u003ctd\u003e84 in (2.13 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrilling depth, with extension rod\u003c\/td\u003e\n\u003ctd\u003e156 in (3.96 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotation torque required\u003c\/td\u003e\n\u003ctd\u003e6,000 ft-lb minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir required at 100 PSI\u003c\/td\u003e\n\u003ctd\u003e804 SCFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir required at 125 PSI\u003c\/td\u003e\n\u003ctd\u003e1,028 SCFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2,243 lb (1,017 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive\u003c\/td\u003e\n\u003ctd\u003e2-5\/8 in hex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003ePin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eUtility derrick, truck mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eDrill bits\u003c\/h2\u003e\n\u003cp\u003eThe bit is the wear item and the one part you cannot skip. TerraRoc DTH bits for the QL 120 are available across the full 12.25 in to 24 in range in a variety of face and button designs, matched to pole diameter and rock condition. Tell us the finished socket size and the formation and we will specify the bit along with the drill.\u003c\/p\u003e\n\n\u003ch2\u003eAccessories, consumables and spares\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003ePart no.\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/terraroc-ppd-120-accelerator-shroud-16-75-inch\"\u003e16.75 in oversleeve\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e52354589\u003c\/td\u003e\n\u003ctd\u003e1,080 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/terraroc-ppd-120-accelerator-shroud-20-inch\"\u003e20 in oversleeve\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e89010038\u003c\/td\u003e\n\u003ctd\u003e1,790 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/terraroc-ppd-120-accelerator-shroud-22-inch\"\u003e22 in oversleeve\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e89010040\u003c\/td\u003e\n\u003ctd\u003e2,337 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/terraroc-ppd-120-extension-rod-72-inch\"\u003e72 in extension rod\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e51792232\u003c\/td\u003e\n\u003ctd\u003e1,051 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/terraroc-ppd-120-support-module\"\u003eSupport module\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e51776011\u003c\/td\u003e\n\u003ctd\u003e580 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/terraroc-ppd-120-air-swivel\"\u003ePPD 120 air swivel\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e89010041\u003c\/td\u003e\n\u003ctd\u003eCall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/terraroc-ql-120-dth-hammer-with-ppd-backhead\"\u003eQL 120 hammer with PPD backhead\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e89010205\u003c\/td\u003e\n\u003ctd\u003eCall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/terraroc-ql-120-sustainability-kit\"\u003eQL 120 sustainability kit\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e52354648\u003c\/td\u003e\n\u003ctd\u003eService kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eDocumentation\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/terraroc-ppd120-utility-power-pole-drill-brochure.pdf?v=1792512079\" target=\"_blank\" rel=\"noopener\"\u003eDownload the TerraRoc PPD 120 brochure and technical specifications (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eOrdering and freight\u003c\/h2\u003e\n\u003cp\u003eThe PPD 120 ships as freight from TerraRoc USA. Warthog Air Compressor Store handles order placement, freight coordination and warranty registration. Call (888) 229-9904 for current lead time, freight to your yard, and compressor pairing. If you are drilling to a utility specification, send us the embedment detail and socket diameter and we will confirm the bit, and whether you need an oversleeve, before the order goes in.\u003c\/p\u003e","brand":"TerraRoc","offers":[{"title":"Default Title","offer_id":67723972706579,"sku":"52354523","price":58000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/TerraRoc2.jpg?v=1792520549"}],"url":"https:\/\/aircompressorstore.com\/collections\/terraroc.oembed","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}