QL Series e nyenyane ya ho qhobanya ka ho sebelisa puso ea lefatshe e phahameng ke ntho ya ho qhobanya e ka tlase ho leqhubu e nang le boima bo boholo e entsoeng ho qhobanya ka mokhoa o nepahetseng ho qhobanya ha mafura, ho qhobanya ha lithapo, ho qhobanya ha metsi, le ho qhobanya ha litšebiso tsa ho qhobanya ha leqhubu.
E le karolo ea tse rarahane haholo ho tse tsitsitseng DTH hammer systems ho tsebo ea ho qaqisa e phahameng, QL series e fana ka kopano e lekanyetsoeng ea mophato o phahameng, mosebetsi o sebetsang ka moeli, le khotso e phahameng. E e bokellwa ho sebetsa ho mofuta oa moeli o phahameng kapa o phahameng haholo, e thusang ho qaqisa litho tsa bohloko le tsa bohloko haholo.
QL Series e kopa mofuta o mongata oa mahlako joalo ka QL40, QL50, QL60, QL80, QL40A, QL50A, QL680, le QL880, e kopa mofuta o lekanyetsoeng oa qaqiso ho 110 mm ho isa ho 254 mm. Molemong le 'ngoe ya mahlako, e e bokellwa ka mofuta o lekanyetsoeng oa mafura a moholo a mofuta oa moeli ho netefatsa ho fana ka mophato o lekanyetsoeng, ho lula ho sebelisoa moeli, le ho fetisisa ho qaqisa.
E entsoe ka sebaka sa litho tsa alloy tsa bohloko le ho tlaheha ka mofuta o lekanyetsoeng, QL series e fana ka tšepahalo e phahameng ea ho tšoara le nako e telele ea ho sebelisoa hantle ha e sebelisoa ka mofuta o lekanyetsoeng oa qaqiso. Sistimi ea piston ea mofuta o lekanyetsoeng e netefatsa ho qaqisa e lekanyetsoeng le mosebetsi o lekanyetsoeng oa qaqiso ho mofuta o mongata oa litho.
Ka ho iphetseha le ho phetseha ha mofuta o fanoeng le maemo a ho sebetsa, QL Series e tšepahala le API 2 3/8", API 3 1/2", le API 4 1/2" tšebeliso ya dipolelo tsa ho qhobetso, e fana ka bothata bo bobe ba ho tšepahala ho dipolelo tsa ho qhobetso tse fapaneng le ho sebetsa ho tšebeliso ya lefase.
Mofuta ona o tsebisitsweng hantle e le tharollo e fana ka molao wa ho fokotsa litšenyehelo le e tšepahalang bakeng sa bafatli ba tšebeliso ya ho qhobetso, ba hlokang bothata bo tšepahalang le ho fokotsa litšenyehelo tsa ho qhobetso ho tšebeliso ya ho qhobetso ya matla a mekhoa ya ho qhobetso a matla ho tšebeliso ya ho qhobetso ya matla a mekhoa ya ho qhobetso a matla.
Ho qala ho sebedisa: o tumele mohato → o fumana phatlalatso ya teknoloji e fapaneng le ho bontša tharollo → o amohela toropo → ho etsa le ho tšekwa → ho romela ha kotsi → mohato o tloha ho sebelisa likarolo tse ngata le tšebetso ya teknoloji. Re araba haufi le re thusa ka mohato ohle wa toropo.
Ha u sule o tseba serisi sefe sa DTH hammer se fita ho ts'ebetso ea hao? Ratisa re rona diametere e hlokahalang ya pholo le bophahle, masenine a rona a tla lona serisi sa hammer le modeli e tšoanang hantle le rig le formation ea hao.
Liste ya Mafuta a QL40A |
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| Moahloli. | Mafuta | Fetola | Nomoro ya Mafuta |
| 1 | Mafuta a Maholo | 8.1 Kg | 01-QL40A-01 |
| 2 | "O" Ring | 0.01 Kg | 01-QL40A-02 |
| 3 | Vali ya boloka | 0.3 kg | 01-QL40A-03 |
| 4 | Letšatši la Phalane | 0.04 Kg | 01-QL40A-04 |
| 5 | Sedima sa Mokhetho | 1.5 kg | 01-ND45A-05 |
| 6 | Silindara ea Bophelong | 2.1 Kg | 01-QL40A-06 |
| 7 | Piston | 8.4 Kg | 01-QL40A-07 |
| 8 | Mokhetho oa Piston | 16.4 Kg | 01-QL40A-08 |
| 9 | Sleeve ea Tlhomamisang | 2.3 Kg | 01-QL40A-09 |
| 10 | Ring ya Kgoniho | 0.27 Kg | 01-QL40A-10 |
| 11 | "O" Ring | 0.01 Kg | 01-QL40A-11 |
| 12 | Mofuta wa bophelo | 3.3 Kg | 01-QL40A-12 |
| 13 | Bit ya Ho Tšepisa | — | 01-QL40A-13 |
Mabapi a Bokone |
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| Dilo | Parametere | ||
| Boleleli (Ha ho Bit) | 1057 mm | ||
| Fetola | 42.7 Kg | ||
| Boholo ba ntlha | 99 mm | ||
| Mokhutlo wa ho hokahanya | API 2 3/8" REG | ||
| Sekhutlo sa lebiti | QL40A | ||
| Mofuta wa lihole | 110–135 mm | ||
| Phetshe ya mosebetsi | 1.0–2.2 MPa | ||
| Lebelo le khothalletsoang la ho potoloha | 30–60 r/min | ||
| Ho sebelisa hawa (1.0 MPa) | 5 m³/min | ||
| Khothliso ya Lefu (1.8 MPa) | 9 m³/min |
Lipart ngwagwa tsa QL50A |
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| Moahloli. | Mafuta | Fetola | Nomoro ya Mafuta |
| 1 | Mafuta a Maholo | 14 Kg | 01-QL50A-01 |
| 2 | "O" Ring | 0.01 Kg | 01-QL50A-02 |
| 3 | Vali ya boloka | 0.6 Kg | 01-QL50A-03 |
| 4 | Letšatši la Phalane | 0.06 Kg | 01-QL50A-04 |
| 5 | Sedima sa Mokhetho | 2.15 Kg | 01-QL50A-05 |
| 6 | Silindara ea Bophelong | 3.3 Kg | 01-QL50A-06 |
| 7 | Piston | 15.5 Kg | 01-QL50A-07 |
| 8 | Mokhetho oa Piston | 24.2 Kg | 01-QL50A-08 |
| 9 | Sleeve ea Tlhomamisang | 2.75 Kg | 01-QL50A-09 |
| 10 | Ring ya Kgoniho | 0.45 Kg | 01-QL50A-10 |
| 11 | "O" Ring | 0.01 Kg | 01-QL50A-11 |
| 12 | Drive Chuck | 5.4 Kg | 01-QL50A-12 |
| 13 | Bit ya Ho Tšepisa | — | 01-QL50A-13 |
Mabapi a Bokone |
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| Dilo | Parametere | ||
| Boleleli (Ha ho Bit) | 1102 mm | ||
| Fetola | 68.5 Kg | ||
| Mokhorlo o kholo | 126 mm | ||
| Mokhutlo wa ho hokahanya | API 2 3/8" REG | ||
| Sekhutlo sa lebiti | QL50A | ||
| Mofuta wa lihole | 136–155 mm | ||
| Phetshe ya mosebetsi | 1.0–2.5 MPa | ||
| Lebelo le khothalletsoang la ho potoloha | 30–60 r/min | ||
| Ho sebelisa hawa (1.0 MPa) | 7 m³/min | ||
| Khothliso ya Lefu (1.8 MPa) | 13 m³/min |
Lijabula tsa QL680 |
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| Moahloli. | Mafuta | Fetola | Nomoro ya Mafuta |
| 1 | Mafuta a Maholo | 21.5 Kg | 01-QL680-01 |
| 2 | "O" Ring | 0.01 Kg | 01-QL680-02 |
| 3 | Mafuta a Tlholohelo | 0.34 Kg | 01-QL680-03 |
| 4 | Vali ya boloka | 0.56 Kg | 01-QL680-04 |
| 5 | Letšatši la Phalane | 0.05 Kg | 01-QL680-05 |
| 6 | Sedima sa Mokhetho | 4.3 Kg | 01-QL680-06 |
| 7 | Silindara ea Bophelong | 4.2 Kg | 01-QL680-07 |
| 8 | Piston | 23 Kg | 01-QL680-08 |
| 9 | Mokhetho oa Piston | 34.3 Kg | 01-QL680-09 |
| 10 | Sleeve ea Tlhomamisang | 5.4 Kg | 01-QL680-10 |
| 11 | Hlahloba Ring | 0.02 Kg | 01-QL680-11 |
| 12 | Ring ya Kgoniho | 0.92 Kg | 01-QL680-12 |
| 13 | "O" Ring | 0.01 Kg | 01-QL680-13 |
| 14 | Drive Chuck | 7.5 Kg | 01-QL680-14 |
| 15 | Bit ya Ho Tšepisa | — | 01-QL680-15 |
Mabapi a Bokone |
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| Dilo | Parametere | ||
| Boleleli (Ha ho Bit) | 1155 mm | ||
| Fetola | 102 kg | ||
| Mokhorlo o kholo | 148 mm | ||
| Mokhutlo wa ho hokahanya | API 3 1/2" REG | ||
| Sekhutlo sa lebiti | QL60A | ||
| Mofuta wa lihole | 158–203 mm | ||
| Phetshe ya mosebetsi | 1.2–2.7 MPa | ||
| Lebelo le khothalletsoang la ho potoloha | 30–60 r/min | ||
| Khothliso ya Lefu (1.8 MPa) | 16 m3/min | ||
| Khothliso ya Lefu (2.4 MPa) | 23 m3/min |
Lipartsi tsa QL880 |
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| Moahloli. | Mafuta | Fetola | Nomoro ya Mafuta |
| 1 | Mafuta a Maholo | 38.5 Kg | 01-QL880-01 |
| 2 | "O" Ring | 0.02 Kg | 01-QL880-02 |
| 3 | Vali ya boloka | 0.65 kg | 01-QL880-03 |
| 4 | Letšatši la Phalane | 0.1 Kg | 01-QL880-04 |
| 5 | Sedima sa Mokhetho | 6.2 Kg | 01-QL880-05 |
| 6 | Silindara ea Bophelong | 7.4 Kg | 01-QL880-06 |
| 7 | Piston | 44.5 Kg | 01-QL880-07 |
| 8 | Mokhetho oa Piston | 64.5 Kg | 01-QL880-08 |
| 9 | Sleeve ea Tlhomamisang | 10.5 Kg | 01-QL880-09 |
| 10 | Ring ya Kgoniho | 1.2 kg | 01-QL880-10 |
| 11 | "O" Ring | 0.01 Kg | 01-QL880-11 |
| 12 | Drive Chuck | 14.5 Kg | 01-QL880-12 |
| 13 | Bit ya Ho Tšepisa | — | 01-QL880-13 |
Mabapi a Bokone |
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| Dilo | Parametere | ||
| Boleleli (Ha ho Bit) | 1335 mm | ||
| Fetola | 188 Kg | ||
| Mokhorlo o kholo | 185 mm | ||
| Mokhutlo wa ho hokahanya | API 4 1/2" REG | ||
| Sekhutlo sa lebiti | QL80A | ||
| Mofuta wa lihole | 198–254 mm | ||
| Phetshe ya mosebetsi | 1.5–3.3 MPa | ||
| Lebelo le khothalletsoang la ho potoloha | 30–60 r/min | ||
| Khothliso ya Lefu (2.4 MPa) | 25 m³/min | ||
| Ho sebelisa hawa (—) | 34 m³/min |
Liparteng tsa QL40 |
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| Moahloli. | Mafuta | Fetola | Nomoro ya Mafuta |
| 1 | Mafuta a Maholo | 8.8 Kg | 01-QL40-01 |
| 2 | "O" Ring | 0.01 Kg | 01-QL40-02 |
| 3 | Vali ya boloka | 0.46 kg | 01-QL40-03 |
| 4 | Letšatši la Phalane | 0.04 Kg | 01-QL40-04 |
| 5 | Mokhukhu wa rubber | 0.2 Kg | 01-QL40-05 |
| 6 | Sedima sa Mokhetho | 2.1 Kg | 01-QL40-06 |
| 7 | Silindara ea Bophelong | 2.45 Kg | 01-QL40-07 |
| 8 | Piston | 8.8 Kg | 01-QL40-08 |
| 9 | Mokhetho oa Piston | 16.5 Kg | 01-QL40-09 |
| 10 | Sleeve ea Tlhomamisang | 0.9 Kg | 01-QL40-10 |
| 11 | Ring ya Kgoniho | 0.2 Kg | 01-QL40-11 |
| 12 | "O" Ring | 0.01 Kg | 01-QL40-12 |
| 13 | Drive Chuck | 3.3 Kg | 01-QL40-13 |
| 14 | Bit ya Ho Tšepisa | — | 01-QL40-14 |
Mabapi a Bokone |
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| Dilo | Parametere | ||
| Boleleli (Ha ho Bit) | 1102 mm | ||
| Fetola | 43.7 Kg | ||
| Boholo ba ntlha | 99 mm | ||
| Mokhutlo wa ho hokahanya | API 2 3/8" REG | ||
| Sekhutlo sa lebiti | QL40 | ||
| Mofuta wa lihole | 110–135 mm | ||
| Phetshe ya mosebetsi | 1.0–2.2 MPa | ||
| Lebelo le khothalletsoang la ho potoloha | 30–60 r/min | ||
| Ho sebelisa hawa (1.0 MPa) | 5.5 m³/min | ||
| Khothliso ya Lefu (1.8 MPa) | 10 m³/min |
Lipontsho tsa QL50 |
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| Moahloli. | Mafuta | Fetola | Nomoro ya Mafuta |
| 1 | Mafuta a Maholo | 14.7 Kg | 01-QL50-01 |
| 2 | "O" Ring | 0.02 Kg | 01-QL50-02 |
| 3 | Vali ya boloka | 1 Kg | 01-QL50-03 |
| 4 | Letšatši la Phalane | 0.06 Kg | 01-QL50-04 |
| 5 | Mokhukhu wa rubber | 0.2 Kg | 01-QL50-05 |
| 6 | Sedima sa Mokhetho | 4.1 Kg | 01-QL50-06 |
| 7 | Silindara ea Bophelong | 4.4 Kg | 01-QL50-07 |
| 8 | Piston | 17 Kg | 01-QL50-08 |
| 9 | Mokhetho oa Piston | 24.7 Kg | 01-QL50-09 |
| 10 | Sleeve ea Tlhomamisang | 1 Kg | 01-QL50-10 |
| 11 | Ring ya Kgoniho | 0.6 Kg | 01-QL50-11 |
| 12 | "O" Ring | 0.01 Kg | 01-QL50-12 |
| 13 | Drive Chuck | 5.6 Kg | 01-QL50-13 |
| 14 | Bit ya Ho Tšepisa | — | 01-QL50-14 |
Mabapi a Bokone |
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| Dilo | Parametere | ||
| Boleleli (Ha ho Bit) | 1154 mm | ||
| Fetola | 73.5 Kg | ||
| Boholo ba ntlha | 126 mm | ||
| Mokhutlo wa ho hokahanya | API 2 3/8" REG | ||
| Sekhutlo sa lebiti | QL50 | ||
| Mofuta wa lihole | 135–155 mm | ||
| Phetshe ya mosebetsi | 1.0–2.5 MPa | ||
| Lebelo le khothalletsoang la ho potoloha | 30–60 r/min | ||
| Ho sebelisa hawa (1.0 MPa) | 9 m³/min | ||
| Khothliso ya Lefu (1.8 MPa) | 15 m³/min |
Lipontsho tsa QL60 |
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| Moahloli. | Mafuta | Fetola | Nomoro ya Mafuta |
| 1 | Mafuta a Maholo | 23 Kg | 01-QL60-01 |
| 2 | "O" Ring | 0.02 Kg | 01-QL60-02 |
| 3 | Vali ya boloka | 0.08 Kg | 01-QL60-03 |
| 4 | Letšatši la Phalane | 0.05 Kg | 01-QL60-04 |
| 5 | Mokhukhu wa rubber | 0.3 kg | 01-QL60-05 |
| 6 | Sedima sa Mokhetho | 6.2 Kg | 01-QL60-06 |
| 7 | Silindara ea Bophelong | 5 Kg | 01-QL60-07 |
| 8 | Piston | 23.5 Kg | 01-QL60-08 |
| 9 | Mokhetho oa Piston | 39 kg | 01-QL60-09 |
| 10 | Sleeve ea Tlhomamisang | 1.1 kg | 01-QL60-10 |
| 11 | Ring ya Kgoniho | 0.6 Kg | 01-QL60-11 |
| 12 | "O" Ring | 0.02 Kg | 01-QL60-12 |
| 13 | Tšepa ya ho bula | 6.3 Kg | 01-QL60-13 |
| 14 | Bit ya Ho Tšepisa | — | 01-QL60-14 |
Mabapi a Bokone |
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| Dilo | Parametere | ||
| Boleleli (Ha ho Bit) | 1211 mm | ||
| Fetola | 105 Kg | ||
| Boholo ba ntlha | 148 mm | ||
| Mokhutlo wa ho hokahanya | API 3 1/2" REG | ||
| Sekhutlo sa lebiti | QL60 | ||
| Mofuta wa lihole | 158–190 mm | ||
| Phetshe ya mosebetsi | 1.0–2.5 MPa | ||
| Lebelo le khothalletsoang la ho potoloha | 30–60 r/min | ||
| Ho sebelisa hawa (1.0 MPa) | 20 m³/mino | ||
| Khothliso ya Lefu (1.8 MPa) | 28 m³/min |
Lethathamo la Mafuta a QL80 |
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| Moahloli. | Mafuta | Fetola | Nomoro ya Mafuta |
| 1 | Mafuta a Maholo | 42 Kg | 01-QL80-01 |
| 2 | Shim ya ho Tloha | 0.2 Kg | 01-QL80-02 |
| 3 | "O" Ring | 0.02 Kg | 01-QL80-03 |
| 4 | Vali ya boloka | 1.3 Kg | 01-QL80-04 |
| 5 | Letšatši la Phalane | 0.1 Kg | 01-QL80-05 |
| 6 | Mokhukhu wa rubber | 0.4 Kg | 01-QL80-06 |
| 7 | Sedima sa Mokhetho | 12.7 Kg | 01-QL80-07 |
| 8 | Silindara ea Bophelong | 9.1 Kg | 01-QL80-08 |
| 9 | Piston | 41 Kg | 01-QL80-09 |
| 10 | Mokhetho oa Piston | 64 Kg | 01-QL80-10 |
| 11 | Sleeve ea Tlhomamisang | 2.9 Kg | 01-QL80-11 |
| 12 | Ring ya Kgoniho | 1.2 kg | 01-QL80-12 |
| 13 | "O" Ring | 0.02 Kg | 01-QL80-13 |
| 14 | Shim ya ho Tloha | 0.2 Kg | 01-QL80-14 |
| 15 | Tšepa ya ho bula | 12 Kg | 01-QL80-15 |
| 16 | Bit ya Ho Tšepisa | — | 01-QL80-16 |
Mabapi a Bokone |
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| Dilo | Parametere | ||
| Boleleli (Ha ho Bit) | 1471 mm | ||
| Fetola | 187 Kg | ||
| Boholo ba ntlha | 180 mm | ||
| Mokhutlo wa ho hokahanya | API 4 1/2" REG | ||
| Sekhutlo sa lebiti | QL80 | ||
| Mofuta wa lihole | 195–254 mm | ||
| Phetshe ya mosebetsi | 1.5–3.3 MPa | ||
| Lebelo le khothalletsoang la ho potoloha | 30–60 r/min | ||
| Khothliso ya Lefu (1.8 MPa) | 26 m³/min | ||
| Khothliso ya Lefu (2.4 MPa) | 34 m³/min |
1. Ho fumana mafura le ho qhobisa mafura a ho qhobisa
Serese sa QL se sebelisoa ka kotloloho ho tshebetso ea ho qhobisa mafura a ho qhobisa ho mafura a ho qhobisa. E fana ka mafura a ho qhobisa a amanang le ho qhobisa ha ho qhobisa ho mafura a ho qhobisa.
2. Ho qeta metsi ho tsoa ho lefase
E tshehetse ho qeta metsi ho tsoa ho lefase ho tsebo ea lefase, ho fana ka metsi ho baile, le ho lihlahlabang tsa ho qeta metsi ho tsoa ho lefase. E netefatsa ho etsahala ha ho lekanyetso e tšoanang ho lihlahlabang tse fapaneng tsa lefase.
3. Ho qhobela ho lithaba tsa ho qhobela
E tshehetse ho qeta lithapo tsa granit, basalt, limestone, le lithapo tse ling tsa ho qeta lithapo tsa khotsi. Seri ea QL e fana ka ho qeta lithapo ka tsela e phahameng le ho qeta lithapo ka tsela e sa feleng ho sebetsa.
4. Ho etsa mafura a ho qetela ho tsebiso ya mafura
E sebelisetsoa ho qeta metsi ho tsoa ho lefase ho ho qetela ho tsebo ea lefase, ho qeta lithapo tsa ho qeta metsi ho tsoa ho lefase, ho qeta metsi ho tsoa ho lefase ho tsebo ea lefase, le ho lihlahlabang tsa ho qeta metsi ho tsoa ho lefase. E etsa tsela e phahameng ho lihlahlabang tse tloaelehileng le tse qaqileng tsa lefase.
5. Ho qhaqha ho lefase la ho lekola mafura a mahlakore
E tshehetse ho lihlahlabang tsa geothermal tseo li hlokang ho qeta metsi ho tsoa ho lefase ka tsela e stabile le e tšoanang ho lithapo tsa ho qeta metsi ho tsoa ho lefase tseo li nang le mocheso o phahameng.
Seria e telele e kenyelletsoe ho lihlahlabang tse ngata tsa ho qeta metsi ho tsoa ho lefase
Mokhoa o phahameng oa ho qeta lithapo ka tsela e phahameng
Ho etsahala ha ho lekanyetso e stabile ho lithapo tsa ho qeta metsi ho tsoa ho lefase tsa ho lekanyetso le tsa khotsi
Sistimi ea ho aha lefase e hlophisitsoeng e lula e qetella ho sebelisa lefase
E tsamaisana le mefuta e mengata ea litšebiso tsa mafoko a leholimo
Likhoelo tsa likhōlō tse fanoeng ke tšebeliso ya mafoko a leholimo ho etsa hore li sebele ho bophara bo leholimo
E tsamaisana ho botho ba ho qetella le ho qetella ho mafoko a leholimo
Ho fana ka ho qetella ho le monyane le ho lekana ha ho lekana ho tšebeliso ya kotsi
Mofuta o sa tšoaneng o sa tšoaneng ho litšebiso tsa mafoko a leholimo
P1: QL Series DTH Hammer e sebelisetsoa ho eng?
QL Series e etsetswelwe ho qetella ho mafoko a leholimo, ho qetella ho mafoko a leholimo, ho qetella ho mafoko a leholimo, le ho qetella ho mafoko a leholimo. E tsamaisana ho qetella ho mafoko a leholimo ho mafoko a leholimo ho mafoko a leholimo.
P2: Ke eng seo se faranang pakeng tsa QL40, QL50, QL60, le QL80?
Tšebeliso e nyane ke mafoko a leholimo a hole, ho tšebelisa mafoko a leholimo, le ho tšebelisa mafoko a leholimo. Mafoko a nyane joaloka QL40 a sebelisetsoa ho qetella ho mafoko a leholimo, ha ho QL80 e etsetswelwe ho qetella ho mafoko a leholimo le ho qetella ho mafoko a leholimo.
P3: QL Series e ka tlosoa Atlas Copco kapa Sandvik hammers?
Ee, QL Series e hlophisitsweng e le sistimi ya ho fapana e amanang le mofuta o tšoanang oa DTH hammer o sebeliswang ke mabrandi a bophara joalo ka Atlas Copco, Sandvik, le Epiroc, ka ho qetella ho boholo le ho hlophiso.
P4: Na o arabeloa OEM kapa tshebetso ya lebitso la lefela?
Ee, re fa tshebetso e felletseng ya OEM e kenyang ho fetola lebitso la lefela, ho hlakola lebitso la mofuta, litšhupelo tsa litšhupelo, ho fetola pakeng ya ho pakisha, le ho hlakola mofuta ho latela litshebeletso tsa mosali.
P5: Sebaka se hlahisitse jang le nako ea ho fihla?
Mofuta o tšoanang o hlahisitsweng ka 7–20 masobala ka ho qetella ho boholo ba mohato. Re sebelisa ho hlahisa ka lehlakore la lefatše le pakeng e nang le mafura a mafatse a ho hlahisa. Ho hlahisa ka lehlakore la pula e fumaneha bakeng sa mohato o sa tloaelehang.
Hlalosetso © Quzhou Mazellion Heavy Industry Technology Co., Ltd. Tsohle tsa Lichaba li Sebetsa — Lefelo la bopeli
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