Custom CNC Brass Turned Cross Drilled Bodies With Conical Seats And Ports
Where Cross Drilled Bodies Usually Fail
Every rejected brass body traces back to the same three places: a cross hole drilled off position, a burr left inside the bore, and a seat that no longer runs true after threading. We machine all three in one controlled sequence, not as separate guesses.
·Port position held, not hoped. The cross hole is located from the same datum as the seat, so the port lands where the drawing says.
·Bore left genuinely clean. Every cross hole is deburred inside the bore, so no chip or sliver reaches your assembly.
·Seat stays true after threading. The conical seat is cut and checked after threading, so sealing faces stay concentric with the body.
·One‑piece strength. Body, thread and seat are turned from solid brass, with no joints to leak.
·Material matched to service. Standard H59 brass for general duty, with DZR and lead‑free grades for aggressive water and potable lines.
Part At A Glance
Material
H59 brass, machined from solid bar
Body
smooth cylindrical shank with a flat end face
Port
one large transverse cross hole, deburred through the bore
Nose
conical seat with a center bore, matched to your mating line
Thread
external thread section between seat and body
Finish
as‑machined brass with clean port edges
Illustrated sample
about 48 mm long, body diameter roughly 12 mm; your geometry can differ completely
Options
NPT, BSP, UNF or metric threads, single or multiple ports, nickel or chrome plating
H59 Brass Material Profile
| Property | Value In Machined Parts | Why It Matters In Service |
|---|---|---|
| Machinability | Excellent, free cutting | Clean bores and crisp threads at production speed |
| Corrosion resistance | Good in air, fuel, gas and water lines | Long service life without rust |
| Dezincification risk | Grade dependent | DZR grades available for aggressive water |
| Conductivity | Electrically and thermally conductive | Suits instrument and bonding duties |
| Magnetic response | Non magnetic | Safe for sensor and instrument lines |
| Sparking risk | Non sparking | Useful near fuel and gas handling |
| Temperature range | Wide for common line temperatures | Stable in hot and cold service |
| Compliance options | Lead‑free and RoHS compliant grades on request | Meets potable water and export rules |
CNC Turning Capability Table
| Feature | What We Deliver |
|---|---|
| Turning | Bodies, shanks, steps, shoulders, relief grooves and bores from solid brass bar |
| Cross drilling | Single or multiple transverse ports, located from the seat datum |
| Threading | NPT, BSP, BSPT, UNF, UNC and metric threads on external or internal features |
| Seat forming | Conical and flat seats cut after threading, then checked for runout |
| Deburring | Internal bore deburring on every cross hole, edges broken by hand or tool |
| Tolerance | Standard plus/minus 0.05 mm; port position and bores reviewed to tighter values |
| Order size | Prototypes from 10‑50 pieces; production runs to 100,000 pieces |
| Files accepted | PDF, STEP, IGS, DWG; samples and sketches also welcome |
Typical Applications
Quality You Can Verify, Not Just Trust
Shenzhen Perfect Precision Products Co., Ltd. runs a 20‑year‑old factory with 6,000 square meters of floor space, 100+ CNC machines and a full ERP system.
- Four‑stage control: incoming material checks, first‑piece inspection, batch sampling and 100% pre‑shipment QC.
- Digital proof: 3D inspection equipment, material certificates and inspection reports on request.
- Traceability: every batch runs through the ERP, so lots are easy to follow and repeat.
- After‑sales: report any issue by call, video conference or email within one month; our team responds with a solution within one week.
Samples And Lead Times
- ·Sample: 1‑2 weeks
- ·Production: 3‑4 weeks after approval
- ·Quote: send PDF, STEP, IGS or DWG, or simply photos and size notes of the part you need
About Us
Processing Material
Application
POSITIVE FEEDBACK
FAQ
1. Are you a manufacturer or a trading company?
We are a factory located in Shenzhen, China, with 20 years of rich experience, covering 6000 square meters. Complete facilities, including 3D quality inspection equipment, ERP system and 40 machines. If necessary, we can provide you with material certificates, sample quality inspection and other reports.
2. How to get a quote?
Detailed drawings (PDF/STEP/IGS/DWG...), including quality, delivery date, materials, quality, quantity, surface treatment and other information.
3. Can I get a quotation without drawings? Can your engineering team draw for my creativity?
Of course, we are also glad to receive your samples, pictures or detailed size drafts for accurate quotation.
4. Can you provide samples before mass production?
Of course, the sample fee is necessary. If possible, it will be returned during mass production.
5. What is the delivery date?
Generally, the sample lasts for 1‑2 weeks and the batch production lasts for 3‑4 weeks.
6. How do you control quality?
(1) Material Inspection ‑ Check material surfaces and approximate dimensions.
(2) First inspection of production ‑ ensure critical dimensions in mass production.
(3) Sampling inspection ‑ check the quality before delivery to the warehouse.
(4) Preshipment inspection ‑ 100% inspection by QC assistant before shipment.
7. After‑sales service team
If you have any problems after receiving the product, you can provide feedback through voice call, video conference, email, etc. within one month. Our team will provide you with solutions within a week.
